▼ Scroll to Site ▼

Newsletters




Data Modeling

Data Modeling and Database Design and Development – including popular approaches such as Agile and Waterfall design - provide the basis for the Visualization, and Management of, Business Data in support of initiatives such a Big Data Analytics, Business Intelligence, Data Governance, Data Security, and other enterprise-wide data-driven objectives.



Data Modeling Articles

Solution development work is usually accomplished via projects, or a combination of programs and projects. This project perspective often leads to thoughts of documentation as project-owned. And while many documents are project-specific, such as timelines, resource plans, and such, not everything is project-specific. Unless projects are established in a fashion whereby each is very limited in scope to the creation or enhancement of a single application or system, specification and design documents belong to the final solution and not to the project.

Posted March 07, 2012

Kalido, a provider of agile information management software, unveiled the latest release of the Kalido Information Engine, which helps organizations decrease the time for data mart migrations and consolidations. With this new release, customers will be able to import existing logical and physical models and taxonomies to build a more agile data warehouse. Enabling customers to take advantage of existing assets and investments "is going to dramatically reduce the time and the cost that it takes to bring together data marts into more of a data warehouse scenario," says John Evans, director of product marketing at Kalido.

Posted February 23, 2012

In this, our last E-Edition of Database Trends and Applications for 2011, we're taking a look back at some of the most widely read articles of the past year. These articles cover a range of topics. Some provide an examination of just-emerging or quickly evolving technologies, others highlight best practices in a specific discipline, while others comment on trends observed by industry experts. Click on the "December 2011 E-Edition UPDATE" headline above to access the articles. If you missed one earlier in the year, here's your second chance. All DBTA E-Editions are archived by month on the DBTA website.

Posted December 16, 2011

The cost for new development can often be easily justified. If a new function is needed, staffing a team to create such functionality and supporting data structures can be quantified and voted up or down by those controlling resources. Money can be found to build those things that move the organization forward; often, the expense may be covered by savings or increased revenue derived from providing the new services.

Posted December 01, 2011

It is not magic. Building a successful IT solution takes time. And that time is used in various ways: obtaining an understanding of the goal; mapping out what components are necessary and how those components interact; testing components and their interaction; and finally migrating those components into the production environment - otherwise known as analysis, design, development, testing, and deployment. Regardless of the methodology employed, these functions must always be addressed. Different approaches focus on differing needs and aspects. But any complete methodology must fill in all the blanks for accomplishing each of these tasks.

Posted November 10, 2011

When assembling a database design, one of the keys for success is consistency. There should be more than just similarity in the way things are named, the manner in which tables or groups of tables are constructed; the manifestation of these elements should follow standards and practices that are documented and understood. If one tries to rely on the idea that individual developers will simply look at existing tables and glean standards via osmosis as they add on or create new tables, then one does not actually have any standards at all.

Posted September 14, 2011

HP is offering a series of new software solutions designed to improve collaboration among application development and delivery teams. The new HP ALM software solutions include HP Service Virtualization 1.0, HP Application Lifecycle Intelligence (ALI), and HP Agile Accelerator 5.0. "Without a performance management system, it's difficult to measure success," Matthew Morgan, senior director of worldwide product marketing at HP Software, said at a press and blogger briefing at launch day for the product line. Application metrics "should be digitized and automated, and not sit on an Excel desktop."

Posted July 25, 2011

Rally, a vendor in Agile application lifecycle management (ALM) and a Gold-level member of Oracle PartnerNetwork, has announced that Rally Enterprise Edition 2011.2 has achieved Oracle Validated Integration with Oracle's Primavera P6 Enterprise Project Portfolio Management (EPPM) 8. The integration will allow project managers to more easily view and analyze critical data from Agile development teams, enabling them to adjust investment priorities in the organization's portfolio of IT projects.

Posted June 22, 2011

WhereScape, developer of WhereScape RED, an agile IDE for managing data warehouses, has introduced WhereScape 3D, a data-driven design tool for planning and reality-testing data warehousing and business intelligence projects. According to the vendor, using WhereScape 3D, organizations are able to reduce project risk by planning accurate, user-tested projects up front, in hours or days rather than weeks or months.

Posted June 13, 2011

Occasionally, one sees a data structure abomination. This atrocity involves an object of almost any type, in almost any database wherein the object has a start date but no end date. It is not that the finish date currently has no value and is null; it is that the end date does not even exist on the table structure. The stop date was never intended to exist. The object in question starts, but it doesn't ever end.

Posted June 08, 2011

Alpine Data Labs, developer of Alpine Miner, a solution for big data predictive analytics, has received $7.5 million in Series A funding. In addition, after 15 months of product development, the company also announced its 10th production customer and its formal launch in the U.S. market. According to Anderson Wong, Alpine Labs CEO and co-founder, organizations cannot extract all the possible value from their data because it is growing faster than they can analyze it, they don't have enough resources with analytics expertise, and the tools they're using are too complex to get to the answers they need quickly.

Posted May 13, 2011

Oracle has submitted a proposal to the Eclipse Foundation to create a Hudson project in Eclipse and contribute the Hudson core code to that project. Hudson is a industry-leading open source "continuous integration" (CI) server that increases productivity by coordinating and monitoring executions of repeated jobs, making it easier for developers to integrate changes to the project and for users to obtain a fresh build.

Posted May 12, 2011

Dates are important. Without dates how can anything be planned? However, due dates have been know to increase in importance in the delivery of software solutions. Sometimes the due date becomes such an overwhelming creature of importance that the date is more important than following best practices, more important than verifying that what is built is correct, more important than the solution team gaining a proper understanding of the work they are attempting to perform.

Posted April 05, 2011

Embarcadero has introduced DB PowerStudio for DB2 to provide DB2 developers and DBAs with a toolset that brings greater functionality and efficiency to their development, database administration and performance tuning tasks. According to Embarcadero, the new DB PowerStudio for DB2 combines several essential database tools into an aggressively priced suite that extends beyond the capabilities of IBM's database utilities. Following recent introductions of similar toolsets aimed at Oracle, SQL Server and Sybase ASE users, DB PowerStudio for DB2 meets the needs of both DB2 database developers and administrators, helping both improve the performance and availability of their databases.

Posted March 21, 2011

The understanding of object states and their transitions obviously is of great importance to the solution developers because as processes are built they will need to support each state and every possible transition. Additionally, knowledge of object states and transitions is of vital importance to the data modeler because the data must be persisted across each of those states, and often the state of an object needs to be easily identifiable. A data model minimally requires a reference table, along with the varying entities that reference that table (the foreign keys tracking an individual object's status). Specific states drive variations of required attributes or combinations of those attributes that apply to one state and not another. The logical definition of the database can identify these variations through the use of supertype/subtype constructs.

Posted March 09, 2011

CA Erwin Data Modeler r8, a solution for collaboratively visualizing and managing data across multiple systems, was announced by CA Technologies. Enhanced visualization and different ways to visualize data models in non-traditional formats is a main theme of the release, Donna Burbank, senior director of marketing, Data Management, CA Technologies, tells 5 Minute Briefing. The goal is to help ERwin, an established product with a 20-plus-year track record, to reach new audiences, in particular, business and non-technical users, as well as to provide improved workflow for traditional CA Erwin Data Modeler users.

Posted February 23, 2011

CA Technologies says it is now shipping a toolset for collaboratively visualizing and managing data across multiple systems. The product, CA Erwin Data Modeler r8, offers enhanced visualization and different ways to visualize data models in non-traditional formats. "We completely ripped out our old user interface and put in a new one," Donna Burbank, senior director of marketing, Data Management, CA Technologies, tells 5 Minute Briefing. With features like graphics, themes, fonts, and auto layout, she observes, "It is really more like a drawing tool on the front with the power of a data modeling tool behind it."

Posted February 22, 2011

A new toolset designed to streamline common and complex tasks associated with developing, administering and optimizing Oracle databases, has been announced by Embarcadero. The new toolset, called DB PowerStudio for Oracle, combines several of Embarcadero's most popular database tools into a suite that is intended to make it easier for Oracle developers and DBAs to shorten database development and administration times, and to improve the performance and availability of their databases. The toolset is available in a Developer Edition and a DBA Edition.

Posted February 17, 2011

CA Erwin Data Modeler r8, a solution for collaboratively visualizing and managing data across multiple systems, was announced by CA Technologies. Enhanced visualization and different ways to visualize data models in non-traditional formats is a main theme of the release, Donna Burbank, senior director of marketing, Data Management, CA Technologies, tells 5 Minute Briefing. The goal is to help ERwin, an established product with a 20-plus-year track record, to reach new audiences, in particular, business and non-technical users, as well as provide improved workflow for traditional CA Erwin Data Modeler users. "We completely ripped out our old user interface and put in a new one," says Burbank. With features like graphics, themes, fonts, and auto layout, she observes, "It is really more like a drawing tool on the front with the power of a data modeling tool behind it."

Posted February 15, 2011

Embarcadero is providing SQL Server developers and DBAs with a toolset designed to simplify many common and complex tasks associated with developing, administering and optimizing SQL Server databases. The new toolset, dubbed DB PowerStudio for SQL Server, combines several of Embarcadero's most popular database tools into a lower-cost studio offering. DB PowerStudio for SQL Server is available in two editions, a Developer Edition and a DBA Edition. Both editions include tools and capabilities including Rapid SQL, an integrated development environment that simplifies SQL scripting, query building, object management and version control in live databases or offline source code repositories. The overlapping Developer and DBA Editions reflect the converging roles of DBAs and developers in the database space, Scott Walz, senior director of product management for Embarcadero, tells 5 Minute Briefing.

Posted February 08, 2011

Oracle has announced a new version of its data modeling tool, Oracle SQL Developer Data Modeler 3.0. The new release supports collaborative development through new integration with popular open source version control software, as well as the incorporation of user-defined design rules and transformation scripts.

Posted February 02, 2011

Referential integrity helps manage data by enforcing validation between related entities. This enforcement follows logical semantics behind the database design -- i.e., an employee can only work for an already defined department; a prescription can only be written by a health care practitioner with the proper authority. A Foreign Key on an Employee table rejects data when any attempt is made to insert or update a row with a department value that does not already exist as a department identifier within a Department table.

Posted February 02, 2011

When designing a system an architect must conform to all three corners of the CIA (Confidentiality, Integrity and Accessibility) triangle. System requirements for data confidentiality are driven not only by business rules but also by legal and compliance requirements. As such, the data confidentiality (when required) must be preserved at any cost and irrespective of performance, availability or any other implications. Integrity and Accessibility, the other two sides of triangle, may have some flexibility in design.

Posted January 07, 2011

Back in the 1970s, the ANSI SPARC three-tiered model arose, foreshadowing a smooth intertwining of data and architectural design. The three tiers concept isolated the physical storage needs of data structures independent of business' perception of these structures. The three levels were comprised of schemas labeled external, conceptual, and internal, with each level describing the data in focus from varying perspectives.

Posted January 07, 2011

QSM Associates is shipping an updated version of the SLIM software lifecycle management solution, which incorporates support for Agile software development methodologies. A product of McLean, Virginia-based QSM, Inc., the new release, SLIM Suite 8.0, addresses development concerns with Agile methodologies, which emphasize iterative approaches working as small teams with business users.

Posted December 21, 2010

How does one know what one doesn't know? When evaluating what one knows, it is hard to know where to begin. The wise men say, "The more you know, the more you know you don't know." If one believes such commentary, what is known constitutes the tip of the proverbial iceberg. Databases have an easier time with such missing circumstances. If the rows of a database table are lacking referents, an outer join query filtering for NULLs might detail for you all the missing items. In developing and delivering projects, such a reference list for our minds to link to does not exist, for an outer join or anything else. Often, we do not know everything that needs to be done, particularly as a project starts. The difference between success and failure is not so much what one knows, but in how one handles the gaps between what is known now and what needs to be known before one finishes.

Posted November 30, 2010

The year 2010 brought many new challenges and opportunities to data managers' jobs everywhere. Companies, still recovering from a savage recession, increasingly turned to the power of analytics to turn data stores into actionable insights, and hopefully gain an edge over less data-savvy competitors. At the same time, data managers and administrators alike found themselves tasked with managing and maintaining the integrity of rapidly multiplying volumes of data, often presented in a dizzying array of formats and structures. New tools and approaches were sought; and the market churning with promising new offerings embracing virtualization, consolidation and information lifecycle management. Where will this lead in the year ahead? Can we expect an acceleration of these initiatives and more? DBTA looked at new industry research, and spoke with leading experts in the data management space, to identify the top trends for 2011.

Posted November 30, 2010

Talend, an open source data management software vendor, announced it has acquired Sopera, a provider of open source SOA and middleware platforms, creating a global company specializing in open-source middleware solutions.

Posted November 23, 2010

Embarcadero Technologies has announced the availability of ER/Studio XE, database design and data modeling tool suite. This latest version offers improvements in the user experience, and enhanced scalability and performance.

Posted November 17, 2010

Embarcadero Technologies has announced the availability of ER/Studio XE, database design and data modeling tool suite. This latest version offers improvements in the user experience, and enhanced scalability and performance.

Posted November 17, 2010

It has been widely documented - data is growing at astronomical rates. The amount of data your organization has is less important than how the data is being used. Is data growth hindering your business or is it providing a better understanding of the direction you need to go?

Posted November 09, 2010

Psychiatrists report play is important for keeping our minds and bodies healthy and happy. It has been uncovered that without at least some play, we mentally and physically deteriorate. Lack of play can lead to depression. Our brains are so hardwired in their need for playful activities that without such expressions we loose focus. Play enhances the creativity and imagination within us. Likewise, play has a proper role within our work. And not just for the psychological benefit to the individual, but for the overall health of the organization. For an IT development group, play is essential for finding better ways to approach problems. Within an IT context, play involves evaluating new ways to handle old problems. Prototyping, at times, constitutes play. Prototypes can be used for more than just the practicalities of the user interface; sometimes a prototype of specific functions is necessary for comparisons in order to judge how non-obvious techniques may perform. Such prototype endeavors can involve not only new algorithms, but potentially variant data structures. Ideally, such prototypes will improve team understanding of the data structures and offer insights into potential new and innovative approaches.

Posted November 09, 2010

Embarcadero Technologies today announced the availability of ER/Studio XE, database design and data modeling tool suite. This latest version offers improvements in the user experience, enhanced scalability and performance, and expanded database management system (DBMS) support for Netezza's TwinFin appliance.

Posted November 09, 2010

Aimed at further streamlining the development of database-centric web applications, Oracle has introduced Oracle Application Express Release 4.0. The new release helps reduce the time and complexity of building opportunistic Web 2.0 applications and reports. Oracle Application Express (APEX) is a feature included at no additional cost with all editions and releases of Oracle Database 11g. The 4.0 release helps reduce the time and complexity of building opportunistic Web 2.0 applications and reports, and is available now for download from the Oracle Technology Network (OTN).

Posted June 29, 2010

Embarcadero Technologies has released Rapid SQL XE, the latest version of its integrated development environment (IDE) that enables developers and database administrators (DBAs) to produce high quality SQL code faster. Rapid SQL XE includes direct native support for heterogeneous database environments from a single user interface, and debuts support for Embarcadero InterBase and the open source Firebird database, in addition to full Unicode support.

Posted May 20, 2010

Embarcadero Technologies has released Rapid SQL XE, the latest version of its integrated development environment (IDE) that enables developers and database administrators (DBAs) to produce high quality SQL code faster. Rapid SQL XE includes direct native support for heterogeneous database environments from a single user interface, and debuts support for Embarcadero InterBase and the open source Firebird database, in addition to full Unicode support.

Posted May 11, 2010

It is rare to find an implemented database devoid of reference tables. Reference tables provide valid values for drop-down lists and in a slightly obtuse way, also allow for expression of a domain or user-defined data type within the database design. Nominally a reference list is but a list of values to be referenced. In practice, the implemented structure of a reference table is driven by small nuances regarding how each list is used. The signifiers may consist of a code or number that creates a short-hand way of expressing a state or value. Yet in addition to such simple codes, a "medium length" name column or even a column to contain a lengthy text description should exist in support of these codes. The names may be used in drop-down lists so that people need not memorize many code values, and the descriptions can assist help-functions by providing users with more understanding of a value's meaning or intended use. For operational applications it may be worthwhile to have an attribute expressing the order in which items should be displayed, unless alphabetical display is a preference. If codes are maintained via online screens, an indicator may be helpful in flagging values that are part of the system and not to be removed or deactivated via those online screens.

Posted May 10, 2010

Sybase reported financial results for the first quarter ended March 31, 2010. "We are off to a very good start this year," stated John Chen, chairman, CEO and president of Sybase, during a conference call last week. "We are very pleased to report our 10th consecutive record quarter. The highlights include historical first quarter highs in revenue, operating margin, earnings and cash flow. We also have double digit growth in total revenue as well as license growth and message revenue growth."

Posted April 29, 2010

Sybase technical experts are planning a series of Developer Days throughout the United States and Europe to showcase the latest releases of its industry-leading development software. All seminars are free and run from 8:30am - 2pm local time (timing may vary slightly by location) with breakfast and lunch included.

Posted April 29, 2010

Oracle also announced Oracle Application Integration Architecture (AIA) Foundation Pack 11gR1. Oracle AIA provides an open, standards-based approach for organizations to integrate cross-application business processes, leveraging a broad range of custom, Oracle or third-party applications, while gaining efficiencies, increasing competitive edge and enabling lower total cost of ownership.

Posted April 21, 2010

At COLLABORATE 10 this week, Quest Software has been showcasing a new release of Toad for Oracle that provides greater automation in Oracle development, administration, and query and reporting. Toad for Oracle 10.5 builds upon the next-generation enhancements of Toad 10, saving money for the organization and time for the end user.

Posted April 21, 2010

Sybase today announced the availability of Sybase PowerBuilder 12. The new release of Sybase's rapid application development tool enables developers to easily and cost effectively create or migrate their business applications on the Microsoft .NET Framework, for modern and visually appealing application user experiences. Sybase today announced the availability of Sybase PowerBuilder 12. The new release of Sybase's rapid application development tool enables developers to easily and cost effectively create or migrate their business applications on the Microsoft .NET Framework, for modern and visually appealing application user experiences.

Posted April 20, 2010

Quest Software, Inc., a Visual Studio Industry Partner and maker of Toad for Oracle, has announced the launch of Toad Extension for Visual Studio. Toad Extension for Visual Studio is a database schema provider that will support complete application lifecycle management (ALM) for Oracle in Visual Studio 2010, unifying Oracle developers with the rest of the Visual Studio development team.

Posted April 20, 2010

Far too often we all talk past one another. This cross talking, while not always drastic, remains perceived as an understood fuzziness. Much of the time we ignore these minor miscommunications because precision and clarity are not necessarily critical in all situations. If the general gist is effectively understood between those communicating, that generality may be all that is necessary. Those involved in the communication may feel comfortable that assumptions made to "fill in the gaps" will fall within an acceptable range. Although the lack of clarity in the message communicated may be acceptable, in other circumstances it may not be acceptable.

Posted April 07, 2010

Oracle has announced AutoVue 20.0, the first release of the product planned from day-one under Oracle ownership. AutoVue joined Oracle as part of the Agile acquisition in 2007 and solves one central challenge, Thierry Bonfante, director product strategy for Oracle's AutoVue solutions, tells 5 Minute Briefing. "What we provide is a way to open any files, any documents that have been generated by any applications whether it is very simple applications like Microsoft Office or TIFF [Tagged Image File Format] or JPEG [Joint Photographic Experts Group] up to the very advanced 2D and 3D CADs [computer aided designs] that are used in aerospace and defense, construction, utilities, oil and gas."

Posted April 07, 2010

IBM has announced plans to go online with its commercial cloud service for software development and testing, allowing enterprise and government clients to test and develop on an IBM Cloud.

Posted March 18, 2010

IBM has announced plans to go online with its commercial cloud service for software development and testing, allowing enterprise and government clients to test and develop on an IBM Cloud.

Posted March 18, 2010

Software AG has introduced NaturalONE, a new Eclipse-based toolset for enterprise application development. NaturalONE is an IDE that lets developers code and test applications (using the Natural language), expose Natural objects as web services, and create rich web interfaces for their applications. In this way, NaturalONE lets the developer produce applications that not only support enterprise SOA and BPM, but also appeal to business users outside the IT group.

Posted March 17, 2010

Progress Software Corporation yesterday announced the launch of a new business solution intended to enable enterprises to improve business performance. The solution, Progress Responsive Process Management suite (RPM), combines comprehensive visibility, business event processing and business process management (BPM) capabilities on a single, unified platform. "The reason we've created this suite is in response to what we have been seeing in our customer base. Our customers want to gain what we call ‘operational responsiveness.' In other words, to have a business that is highly adaptive, can anticipate opportunities and threats, and respond before they have been missed, or before it is too late," Dr. John Bates, Progress Software CTO, tells 5 Minute Briefing.

Posted March 16, 2010

Pages
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

Sponsors