By Loe M. G. Feijs, Hans B. M. Jonkers, Cornelis A. Middelburg (auth.)

Notations for software program Design goals to provide an explanation for formal specification and layout to practitioners in software program improvement, and to set out the components of a legitimate software program layout method.
It examines COLD-1, that's at the moment being carried out via Philips in lots of of its company centres. the truth that it's a wide-spectrum language which helps many forms of specification makes it a good foundation for the quantity. It additionally examines a few widely-used casual suggestions, reminiscent of Venn diagrams and Petri nets, hence making a powerful hyperlink among present and destiny perform. instead of presenting new pictorial notations the authors position current ones right into a coherent framework, and clarify functional methods of exploiting them along with COLD-1.

Show description

Read or Download Notations for Software Design PDF

Best compilers books

The Definitive Guide to SugarCRM: Better Business Applications (Books for Professionals by Professionals)

SugarCRM is certainly one of if now not the major Open resource CRM answer available on the market at five. five million downloads and transforming into and with approximately 17,000 registered builders and many extra clients. this can be the authentic, definitive ebook written via SugarCRM and counseled by means of SugarCRM. additionally, this e-book will be additionally the single SugarCRM developer publication to be able to handle the platform comparable positive aspects considering SugarCRM five.

Methodologies and Software Engineering for Agent Systems: The Agent-Oriented Software Engineering Handbook

As details applied sciences develop into more and more allotted and available to bigger variety of humans and as advertisement and executive firms are challenged to scale their purposes and prone to bigger marketplace stocks, whereas decreasing expenses, there's call for for software program methodologies and appli- tions to supply the subsequent gains: Richer software end-to-end performance; relief of human involvement within the layout and deployment of the software program; Flexibility of software program behaviour; and Reuse and composition of present software program purposes and platforms in novel or adaptive methods.

Numeric Computation and Statistical Data Analysis on the Java Platform

Numerical computation, wisdom discovery and statistical information research built-in with robust second and 3D snap shots for visualisation are the foremost subject matters of this ebook. The Python code examples powered via the Java platform can simply be reworked to different programming languages, comparable to Java, Groovy, Ruby and BeanShell.

Extra resources for Notations for Software Design

Example text

The pre-condition models implementation restrictions due to limited storage capacity. If i is already in the domain of the_map, no new storage is required. If there are fewer than max elements in the domain, this means that space is still available. But when card(dom(the_map)) = max, the available space is exhausted. The SAT clause gives a restriction that must be satisfied by all state transitions caused by add(i ,j). The restriction is that the only variable modified is the_map. All other variables may not be changed.

DEP el, ... ,el 3. IND A 4. DEF A 5. FREE So the possible forms of function bodies and predicate bodies are essentially the same. The only (and obvious) difference is that, in the case of an algorithmic definition, functions are defined by an expression and predicates by an assertion. If no predicate body is present, then the definition introduces a predicate that is constant. The predicate concerned can be further characterized, in a not necessarily unique way, by axioms. As for functions, this kind of definition is usually found in specifications of primitive data types.

For example, in a specification of a file system one could have the following definition for a procedure to show a path from the root to the current working directory: PROC pwd : -> Path OUT p PRE TRUE POST dir(root,p) = working Objects of sort Path can be viewed as sequences of names. They are paths leading from one directory to another directory or a file. In the post-condition, dir is a function used to map paths to the directory that they refer to and root and working are variable functions used to keep track of the root directory and the current working directory, respectively.

Download PDF sample

Rated 4.85 of 5 – based on 27 votes