Software Engineering A PRACTITIONER’S APPROACH phần 1 ppsx

... 207 8.6 Formal Approaches to SQA 209 8.7 Statistical Software Quality Assurance 209 8.8 Software Reliability 212 8.8 .1 Measures of Reliability and Availability 212 8.8.2 Software Safety 213 PART ONE ... 366 14 .1. 1 What Is Architecture? 366 14 .1. 2 Why Is Architecture Important? 367 14 .2 Data Design 368 14 .2 .1 Data Modeling, Data Structures, Databases, and the Data Wareho...

Ngày tải lên: 13/08/2014, 08:21

... safety and hazard analysis [LEV95] are software quality assurance activ- ities (Chapter 8) that focus on the identification and assessment of potential hazards that may affect software negatively and ... 1. 20 1 1 1 0 1 _____ Project staffing _____ 1. 00 1 1 1 1 1 _____ Interoperability _____ 1. 10 0 1 1 1 1 _____ Reengineering factors _____ 1. 20 0 0 0 0 1 _____ Task...

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... 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 [TAJ 81] has used a cost-oriented ... being evaluated takes on values that are less than 0.0. 5. Compute a standard deviation as (UNPL Ϫ A m )/3. Plot lines one and two standard deviations above and below A m ....

Ngày tải lên: 13/08/2014, 08:21

... is actually a set of concurrent activities that address each of the system components separately: software engineering, hardware engineering, human engineering, and database engineering. Each ... at members.aol.com/ acockburn/papers/ OnUseCases.htm 12 3 456 789 * 0 off SAFEHOME away stay max test bypass instant code chime ready # armed power alarm check fire away stay instant bypass...

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 ... detail contained with the databases, and many other factors make data mining dif- ficult within an existing database environment. An alternative solution, called a data warehouse, adds an add...

Ngày tải lên: 13/08/2014, 08:21

... example, a set of independent paths for the flow graph illustrated in Figure 17 .2B is path 1: 1- 11 path 2: 1- 2-3-4-5 -10 -1- 11 path 3: 1- 2-3-6-8-9 -10 -1- 11 path 4: 1- 2-3-6-7-9 -10 -1- 11 Note that each ... is Boolean, one valid and one invalid class are defined. As an example, consider data maintained as part of an automated banking appli- cation. The user can access th...

Ngày tải lên: 13/08/2014, 08:21

... Pren- tice-Hall, 19 92. Perlis, A. , et al., Software Metrics: An Analysis and Evaluation, MIT Press, 19 81. Sheppard, M., Software Engineering Metrics, McGraw-Hill, 19 92. The theory of software measurement ... for software quality. Hewlett-Packard [GRA87] developed a set of software quality factors that has been given the acronym FURPS— 511 Quality Factors CHAPTER 19...

Ngày tải lên: 13/08/2014, 08:21

... characteristics for the problem domain. 22.2.5 The Data Management Component Data management encompasses two distinct areas of concern: (1) the management of data that are critical to the application ... characteristics of the design that can be searched (e.g., via a database) so that an appropriate pattern can be found. Finally, guidance associated with the use of a design pattern provid...

Ngày tải lên: 13/08/2014, 08:21

... state is some observable mode of system behavior. As processing occurs, a system responds 705 BB 1 CB 1. 1 .1. 1 CB 1. 1 .1. 2 CB 1. 1 .1. 3 SB 1. 1 .1 BB 1. 1 .1 BB 1. 1.2 BB 1. 1.3 BB 1. 1 BB 1. 2 BB 1. n FIGURE 26.2 Box ... Mak- ing appropriate assumptions and using natural language, define a. The data invariant. b. The state. c. The operations that are likely. PART FIVE A...

Ngày tải lên: 13/08/2014, 08:21

... data structure or file format. Another form of redesign, called data name rationalization, ensures that all data naming conventions conform to local standards and that aliases are eliminated as ... reengineering has been spawned by a software maintenance “iceberg” that has been building for more than three decades. 30.2 .1 Software Maintenance Thirty years ago, software maintenance wa...

Ngày tải lên: 13/08/2014, 08:21