Software engineering a practitioner s approach roger pressman(www ebook dl com)

Ngày tải lên: 28/08/2016, 13:07

... McCall’s Quality Factors 509 19 .1. 2 FURPS 511 19 .1. 3 ISO 912 6 Quality Factors 513 19 .1. 4 The Transition to a Quantitative View 513 19 .2 A Framework for Technical Software Metrics 514 19 .2 .1 The ... ARCHITECTURAL DESIGN 14 .1 14.2 14 .3 14 .4 14 .5 14 .6 14 .7 365 Software Architecture 366 14 .1. 1 What Is Architecture? 366 14 .1. 2 Why Is Architecture Importan...

Ngày tải lên: 13/08/2014, 08:21

... (i.e., a logical grouping of data that may be one part of a large database or a separate file) is counted Number of external interfaces All machine readable interfaces (e.g., data files on storage ... the change to all users On average, programs that are maintainable will have a lower MTTC (for equivalent types of changes) than programs that are not maintainable Hitachi [TAJ81] has used...

Ngày tải lên: 13/08/2014, 08:21

... safety and hazard analysis [LEV95] are software quality assurance activities (Chapter 8) that focus on the identification and assessment of potential hazards that may affect software negatively and ... I leave nothing to chance.” Napolean • risk avoidance • risk monitoring • risk management and contingency planning If a software team adopts a proactive approach to risk, avoidance i...

Ngày tải lên: 13/08/2014, 08:21

... process engineering encompasses information strategy planning (ISP), business area analysis (BAA), and application specific analysis that is actually part of software engineering Product engineering ... data, information and control flow, and operational behavior are created Alternative solutions are analyzed and a complete analysis model is created Donald Reifer [REI 94] describes th...

Ngày tải lên: 13/08/2014, 08:21

... abstract data types For example, the Ada package is a programming language mechanism that provides support for both data and procedural abstraction The original abstract data type is used as a template ... solution, called a data warehouse, adds an additional layer to the data architecture CHAPTER 14 ARCHITECTURAL DESIGN 369 A data warehouse is a separate data environment that is n...

Ngày tải lên: 13/08/2014, 08:21

... class are defined If an input condition is Boolean, one valid and one invalid class are defined As an example, consider data maintained as part of an automated banking application The user can access ... significant benefits Maintainability Software maintenance is the most costly phase of the software life cycle Maintenance of the software configuration nearly always means maintenance of the...

Ngày tải lên: 13/08/2014, 08:21

... char1 char2 char3 char4 char5 char7 (A) char1 char2 char3 char4 char8 char1 char2 char3 char4 char5 + char6 X3 + char7 X4 char1 char2 char3 char4 char5 char7 char1 char2 char3 char4 char5 char6 (B) ... char3 char1 char2 char3 + char4 + char5 + char4 X2 X2 char1 char2 char3 char4 char5 char1 char2 char3 char4 + char5 + char6 + char8 + char7 X2b X 2a X3 X4 char1 char2 char3 char4 char5 char6 c...

Ngày tải lên: 13/08/2014, 08:21

... processing associated with the application), (3) a data formatting layer (the subsystems that prepare the data for processing), and (4) a database layer (the subsystems associated with data management) ... classes and objects This means that each class and each instance of a class (object) packages attributes (data) and the operations (also known as methods or services) that manipulate...

Ngày tải lên: 13/08/2014, 08:21

... blocks are reassigned to applications that require additional memory Making appropriate assumptions and using natural language, define a The data invariant b The state c The operations that are likely ... reader should see [MUS87], [CUR86], and [POO93] for additional detail 26.5 SUMMARY Cleanroom software engineering is a formal approach to software development that can lead to so...

Ngày tải lên: 13/08/2014, 08:21

... between flags and local data structures and the global data structures For example, a flag may be set when a file is empty; a local data structure may serve as a buffer that contains the last 100 records ... emphasis on software reengineering has been spawned by a software maintenance “iceberg” that has been building for more than three decades 30.2.1 Software Maintenance Thirty...

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 24/09/2016, 14:31

... So too, are informal rules that shape and limit transactions, like common business practices, cultural attitudes and values, and reputation, and the social constructs that guide and enable interpersonal ... production: capital, people and land - and land is always far cheaper outside cities than inside Why don't capital and people move outside, combining themselves with chea...

Ngày tải lên: 24/01/2014, 00:20