By Joseph N. Hall
The e-book on Perl that skilled Perl programmers were trying to find, powerful Perl Programming explains idiomatic Perl, protecting the newest liberate (Version 5). It contains details and valuable examples in regards to the constitution, services, and most up-to-date functions of the language, resembling self-documenting object-oriented modules. research from Hall's solutions to "real lifestyles" questions and difficulties he gets from newsgroups and his Perl seminars.
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Extra resources for Effective Perl Programming: Writing Better Programs with Perl
Grady Booch Objectives • Provide motivation for the content and order of subsequent chapters. • Define an iterative and adaptive process. • Define fundamental concepts in the Unified Process. Introduction Iterative development is a skillful approach to software development, and lies at the heart of how OOA/D is presented in this book. The Unified Process is an example iterative process for projects using OOA/D, and it shapes the book's presentation. Consequently, it is useful to read this chapter so that these core concepts and their influence on the book's structure are clear.
2. Cashier starts a new sale. 3. Cashier enters item identifier. 4. System records sale line item and presents item description, price, and running total. Price calculated from a set of price rules. Cashier repeats steps 3-4 until indicates done. 50 FULLY DRESSED EXAMPLE: PROCESS SALE 5. 6. 7. 8. System presents total with taxes calculated. Cashier tells Customer the total, and asks for payment. Customer pays and System handles payment. System logs completed sale and sends sale and payment information to the external Accounting system (for accounting and commissions) and Inventory system (to update inventory).
Supplementary Specification Describes other requirements. Glossary Key domain terminology. Risk List & Risk Management Plan Describes the business, technical, resource, schedule risks, and ideas for their mitigation or response. Prototypes and proof-of-concepts To clarify the vision, and validate technical ideas. Iteration Plan Describes what to do in the first elaboration iteration. 37 4 - INCEPTION Artifact1 Comment Phase Plan & Software Development Plan Low-precision guess for elaboration phase duration and effort.
Effective Perl Programming: Writing Better Programs with Perl by Joseph N. Hall