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SEER-SEM
SEER for Software (SEER-SEM) is a project management application used to estimate resources required for software development. History 1966 System Development Corporation Model based on regressions. 1980 Don Reifer and Dan Galorath paper which prompted the building of the JPL Softcost model. This model, an early example of software estimation, allows for automated and performed risk analysis. Softcost was later made a commercial product by Reifer Consultants. 1984 Computer Economics JS-2 and Galorath Designed System-3 based on the Jensen model. The Jensen-inspired System-3, and other modeling systems like Barry Boehm's COCOMO and early works by the Doty Associates can be seen as direct and indirect contributors to the software suite that would be developed by Galorath in the late 1980s. In 1988, Galorath Incorporated began work on the initial version of SEER-SEM.Galorath, D & Evans M. (2006) Software Sizing, Estimation, and Risk Management Page xxii Group of Models SEER fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dan Galorath
Daniel D. Galorath is an American software developer, businessman and author. Galorath is the President and CEO of Galorath Incorporated and one of the chief developers of the project management software known as SEER-SEM. He is also the co-author of ''Software Sizing, Estimation, and Risk Management''. Education Dan Galorath completed his undergraduate work at California State University, and in 1980, he also received an MBA in management from California State University.Project Management Challenge 2006 Biography" Accessed 6 May 2009 Career Following college, Galorath worked in software development with a focus on software management. He began working in the aerospace and defense industries. One of his earliest projects was working with Don Reifer on the creation of NASA's Jet Propulsion Laboratory's Softcost program for Robert Tauseworth. In 1979, Galorath founded Galorath, Inc. as a software development consulting organization. In 1984, Galorath began consulting for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COCOMO
The Constructive Cost Model (COCOMO) is a procedural software cost estimation model developed by Barry W. Boehm. The model parameters are derived from fitting a regression formula using data from historical projects (63 projects for COCOMO 81 and 163 projects for COCOMO II). History The constructive cost model was developed by Barry W. Boehm in the late 1970s and published in Boehm's 1981 book ''Software Engineering Economics'' as a model for estimating effort, cost, and schedule for software projects. It drew on a study of 63 projects at TRW Aerospace where Boehm was Director of Software Research and Technology. The study examined projects ranging in size from 2,000 to 100,000 lines of code, and programming languages ranging from assembly to PL/I. These projects were based on the waterfall model of software development which was the prevalent software development process in 1981. References to this model typically call it ''COCOMO 81''. In 1995 ''COCOMO II'' was develope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Parametric Models
A parametric model is a set of related mathematical equations that incorporates variable parameters. A scenario is defined by selecting a value for each parameter. Software project managers use software parametric models and parametric estimation tools to estimate their projects' duration, staffing and cost. In the early 1980s refinements to earlier models, such as PRICE S and SLIM, and new models, such as SPQR, Checkpoint, ESTIMACS, SEER-SEM or COCOMO and its commercial implementations PCOC, Costimator, GECOMO, COSTAR and Before You Leap emerged. The prime advantage of these models is that they are objective, repeatable, calibrated and easy to use, although calibration to previous experience may be a disadvantage when applied to a significantly different project. These models were highly effective for waterfall model The waterfall model is a breakdown of project activities into linear sequential phases, meaning they are passed down onto each other, where each phase depends on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Source Lines Of Code
Source lines of code (SLOC), also known as lines of code (LOC), is a software metric used to measure the size of a computer program by counting the number of lines in the text of the program's source code. SLOC is typically used to predict the amount of effort that will be required to develop a program, as well as to estimate programming productivity or maintainability once the software is produced. Measurement methods Many useful comparisons involve only the order of magnitude of lines of code in a project. Using lines of code to compare a 10,000-line project to a 100,000-line project is far more useful than when comparing a 20,000-line project with a 21,000-line project. While it is debatable exactly how to measure lines of code, discrepancies of an order of magnitude can be clear indicators of software complexity or man-hours. There are two major types of SLOC measures: physical SLOC (LOC) and logical SLOC (LLOC). Specific definitions of these two measures vary, but the most c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft Windows
Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for servers, and Windows IoT for embedded systems. Defunct Windows families include Windows 9x, Windows Mobile, and Windows Phone. The first version of Windows was released on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs). Windows is the most popular desktop operating system in the world, with 75% market share , according to StatCounter. However, Windows is not the most used operating system when including both mobile and desktop OSes, due to Android's massive growth. , the most recent version of Windows is Windows 11 for consumer PCs and tablets, Windows 11 Enterprise for corporations, and Windows Server 2022 for servers. Genealogy By marketing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Management Software
Project management software (PMS) has the capacity to help plan, organize, and manage resource tools and develop resource estimates. Depending on the sophistication of the software, it can manage estimation and planning, scheduling, cost control and budget management, resource allocation, collaboration software, communication, decision-making, quality management, time management and documentation or administration systems. Numerous PC and browser-based project management software and contract management software products and services are available. History Predecessors The first historically relevant year for the development of project management software is 1896, marked by the introduction of the Harmonogram. Polish economist Karol Adamiecki attempted to display task development in a floating chart, and laid the foundation for project management software as it is today. 1912 was the year when Henry Gantt replaced the Harmonogram with the more advanced Gantt chart, a scheduling d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EULA
An end-user license agreement or EULA () is a legal contract between a software supplier and a customer or end-user, generally made available to the customer via a retailer acting as an intermediary. A EULA specifies in detail the rights and restrictions which apply to the use of the software. Form contracts for digital services (such as terms of service and privacy policies) were traditionally presented on paper (see shrink-wrap agreement) but are now often presented digitally via browsewrap or clickwrap formats. As the user may not see the agreement until after they have already purchased or engaged with the software, these documents may be contracts of adhesion. Software companies often make special agreements with large businesses and government entitles that include support contracts and specially drafted warranties. Many EULAs assert extensive liability limitations. Most commonly, an EULA will attempt to hold harmless the software licensor in the event that the software cau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Economics
Computer Economics is an IT research firm A company, abbreviated as co., is a legal entity representing an association of people, whether natural, legal or a mixture of both, with a specific objective. Company members share a common purpose and unite to achieve specific, declared go ... focusing on the strategic and financial management of information systems. It was founded in 1979 by Bruno Bassi and is currently headquartered in El Segundo, California, USA. Clients include IT organizations, consulting firms, and financial services firms in North America and other countries. Computer Economics research provides IT metrics in six categories along with practical advice backed up by annual surveys of IT decision makers. Its ''Computer Economics Report'', first published in 1979, was a monthly newsletter related to IT cost management. Its ''IT Spending, Staffing,'' ''anWorldwide Technology Trends' study, first published in 1990, is based on its annual survey of IT executi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Sizing, Estimation, And Risk Management
Software is a set of computer programs and associated documentation and data. This is in contrast to hardware, from which the system is built and which actually performs the work. At the lowest programming level, executable code consists of machine language instructions supported by an individual processor—typically a central processing unit (CPU) or a graphics processing unit (GPU). Machine language consists of groups of binary values signifying processor instructions that change the state of the computer from its preceding state. For example, an instruction may change the value stored in a particular storage location in the computer—an effect that is not directly observable to the user. An instruction may also invoke one of many input or output operations, for example displaying some text on a computer screen; causing state changes which should be visible to the user. The processor executes the instructions in the order they are provided, unless it is instructed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backfiring
A backfire or afterburn is combustion or an explosion produced by a running internal combustion engine that occurs in the exhaust system, rather than inside the combustion chamber. It is also sometimes referred to as an afterfire, especially in cases where the word backfire is used to mean a fuel burn that occurs while an intake valve is open, causing the fire to move backward through the system and out through the intake instead of the exhaust. When the flame moves backward it may also be called a "pop-back." A backfire can be caused either by ignition that happens with an exhaust valve open or unburnt fuel making its way in the hot exhaust system. A visible flame may momentarily shoot out of the exhaust pipe. A backfire is often a sign that the engine is improperly-tuned. The term derives from parallel experiences with early unreliable firearms or ammunition in which the explosive force was directed out at the breech instead of the muzzle. That is the origin of the use of "b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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