oreilly head first design patterns epub

... decorators HeadFirst: I’ll be interviewing the Factory and Builder patterns next week – I hear they can be very helpful with this? Decorator: That’s true; I should talk to those guys more often. HeadFirst: ... sometimes add a lot of small classes to a design and this occasionally results in a design that’s less than straightforward for others to understand HeadFirst: Can you give us an example? Decorator: ... Trang 17104 Chapter 3HeadFirst: Welcome Decorator Pattern We’ve heard that you’ve been a bit down on yourself lately? Decorator: Yes, I know the world sees me as the glamorous design pattern, but

Ngày tải lên: 12/08/2014, 19:20

... Trang 1Design Patterns for BuildingService-Oriented Web Services In the previous chapter, you learned how ... communications betweenthem (You will learn how to build a service agent component in the section “Design andBuild a Service Agent” later in this chapter.) Be forewarned: some of the material in ... differentapproaches, but then decide which approach is most appropriate for your business requirements Design and Build a Service-Oriented Web Service This section provides the information that you need

Ngày tải lên: 05/10/2013, 08:48

... Conceptual to Logical Design,” focus on the first step in the transition from conceptual design to logical design, which is to identify the creational and structural design patterns that can be ... Structural Design Patterns 7 Creational Topic Objective To provide a background about creational design patterns Server Lead-in In this topic, you will learn about the creational design patterns ... about the logical design. Lead-in In this topic, you will learn about the transition from conceptual design to logical design and the use of creational and structural design patterns in this process.

Ngày tải lên: 19/10/2013, 02:15

... Behavioral Design Patterns The purpose of this section is to introduce students to behavioral design patterns and their use in the logical design It is important to emphasize which design patterns ... behavioral design pattern is described in detail in Appendix B: “Additional Design Patterns used in Market Purchasing.” Design patterns are not limited to the patterns that are formalized in the design ... behavioral design patterns Trang 8# Introduction to Behavioral Design Patterns ! The Problem ! Interaction with Users or Other Systems ! Maintaining Business Rules ! Data Store Behavioral design patterns

Ngày tải lên: 19/10/2013, 02:15

... Applications 1 Challenges to Designing Interfaces for Web Applications 5 Design Patterns 9 Documenting Patterns 10 Organization of the Patterns in This Book 11 Using Patterns in This Book 14 Companion ... existing patterns as new interface paradigms are created — Arnie Lund, User Experience Director, Microsoft Web Application Design Patterns is a must-read if you are in the business of designing ... look at the designs, it will spark creative design ideas — David Dick, Senior Member of STC, User and UX Special Interest Group Excellent! A very complete and exhaustive overview of patterns for

Ngày tải lên: 24/10/2013, 20:15

... scope narrows (b) (b) Related design patterns HELP WIZARDS may follow the design practices for navigational WIZARDS (see Chapter 5) In addition, see the design practices for RATINGS for ... which then offers several options: chat, email, and call tech support (b) (b) Trang 7 Related design patterns Despite its comprehensiveness, APPLICATION HELP may not be able to answer all users ... more categories of interest and get their questions answered quickly ( Figure Web.9 ) Related design patterns FAQs should be linked from the pages within the application where users are likely

Ngày tải lên: 24/10/2013, 20:15

... informing users how their informgen-ation will be used Related design patterns Even when a form clearly shows required fi elds, designers should still strive to minimize the total number of fi ... to perceive them to be shorter as compared to the entire form presented on one page Related design patterns Once forms are made as short as possible, make them appear even more man-ageable ... pages and then by logically grouping elements on each page Trang 9CHAPTER 2 Forms24 Related design patterns Grouping form elements may suggest that the form be split up into multiple pages to

Ngày tải lên: 08/11/2013, 03:15

... element(s) that caused the error ( Figure 2.39 ) Related design patterns Although error messages are an important part of form design, every step should be taken to prevent errors This can ... information page Related design patterns For many web applications, registration may be the fi rst form users ter To create a successful user experience, it’s important to follow the patterns identifi ... application’s benefi ts and better understand the need and value of setting up an account How First and foremost, keep registration forms as short as possible and ask only for essential information

Ngày tải lên: 08/11/2013, 03:15

... the corresponding step heading, which then expands that step and collapses the current step This design approach is effective for wizards with just a few steps because the headings that represent ... left off Trang 7CHAPTER 5 Navigation142 Related design patterns Because WIZARDS are just a way to present long and/or multistep forms, related patterns such as SMART DEFAULTS, REQUIRED FIELD ... visually compete for attention or distract users from the main navigation mechanisms Related design patterns Breadcrumbs should be given lesser emphasis than other important elements on the

Ngày tải lên: 15/12/2013, 15:15

... the server Trang 7 Related design patterns CONTINUOUS SCROLLING is inappropriate when users are likely to bookmark search results For datasets with predictable patterns (e.g., alphabetical ... highlight the current page and don’t link it to prevent unnecessary navigation Trang 5 Related design patterns An alternative to PAGINATION is CONTINUOUS SCROLLING, which allows users to view all ... previous state and manipulate search results by applying a different set of fi lters Related design patterns FILTERING in traditional applications can become slow because applying fi lter-ing

Ngày tải lên: 24/12/2013, 20:15

... definitions of design patterns have emerged as theliterature in his field has expanded: • “Design patterns are recurring solutions to design problems you see over et al., 1998). Trang 12• “Design patterns ... webuild Java design patterns Studying Design Patterns There are several alternate ways to become familiar with these patterns In each approach, you should read this book and the parent Design Patterns ... Java Design Patterns Each of the 23 design patterns in Design Patterns is discussed in the chapters that follow, along with at least one working program example for that pattern The authors of Design

Ngày tải lên: 16/01/2014, 20:20

... strong, enabling users to choose better passwords. Related design patterns As shown in the examples, richness in forms is achieved by patterns such as AUTOSUGGEST/AUTOCOMPLETION as they respond ... images and layouts in their visual designs How For RIAs, use animation when page elements change appearance but not... item (Figure 8.23) Related design patterns As mentioned, the LIVE PREVIEW ... specify departure and arrival locations. CHAPTER 8 Rich Internet Applications 234 Related design patterns The AUTOSUGGEST/AUTOCOMPLETION pattern is typically used in RICH FORMS and DYNAMIC

Ngày tải lên: 22/01/2014, 02:20

... partial image of the previous or next item in the carousel may be shown ( Figure 8.49 ) Related design patterns CAROUSELS use visual effects (ANIMATIONS/TRANSITIONS), such as slide-left, slide-right, ... any other web application, poorly designed RIAs can undermine ity and must be tested for usability In fact, there are a few inherent usability issues with RIAs designers must be aware of These ... tagging content or providing descriptions, suggest appropriate next steps to them Related design patterns Because uploaded fi les may be large, especially when adding media fi les, use of the

Ngày tải lên: 22/01/2014, 02:20

... MESSAGING and PRESENCE INDICATOR patterns later in this chapter). Related design patterns To promote communication with friends, both the MESSAGING and PRESENCE INDICATOR patterns usually accompany ... person, ” instead of “ recommend services offered by this person. ” Related design patterns Both RATINGS and REVIEWS patterns may accompany REPUTATION because gaining reputation requires users ... Extensible Design language-specific instances of the application Furthermore, by making web applications locale-independent and culture-neutral, extensible design avoids design elements

Ngày tải lên: 26/01/2014, 20:20

... (b) (a) Trang 14 Related design patterns Like other patterns, using localized NUMBER FORMAT requires additional space, and it’s important that pages use an EXTENSIBLE DESIGN to accom-modate ... (a) and Amazon (b) are more appropriate for international audiences Trang 6 Related design patterns The patterns identifi ed in Chapter 11 — SEMANTIC MARKUP, UNOBTRUSIVE STYLE SHEETS, UNOBTRUSIVE ... plemented with a text label Labels placement and icon design should also be accounted for with text expansion to avoid potential design issues DESIGN MESSAGES TO ACCOMMODATE VARIABLE TEXT Variable

Ngày tải lên: 26/01/2014, 20:20

... follows: < label for = " firstName " > First Name: < /label > < input type = " text " id = " firstName " name = " firstName " / > Accessible ... scripting Accessible Forms <label for="firstName">First Name:</label> <input type="text" id="firstName" name="firstName" tabindex="10" ... Information</legend> <label for="firstName">First Name:</label> <input type="text" id="firstName" name="firstName" /> <label for="lastName">Last

Ngày tải lên: 26/01/2014, 20:20

... Contact Try Implementing Design Patterns Design Patterns and Error Checking Design Patterns and Contact Administration Design Patterns and View Types Design Patterns and Deleting ... Parts of a Design Pattern What Design Patterns Are Not Design Patterns Are Not Plug and Play Design Patterns are Maintainable But Not Always Most Efficient Design Patterns are ... with Design Patterns. Professional PHP Design Patterns Saray spine=.5625" PHP Design Patterns Professional Updates, source code, and Wrox technical support at www.wrox.com PHP Design Patterns Aaron

Ngày tải lên: 06/03/2014, 05:21

... Trang 1Adapter Design Pattern State Design Pattern C Sc 335 Rick Mercer Trang 2Adapter Design Pattern  Gang of Four state the intent of Adapter is ... the first open, royalty-free standard for cross-platform, parallel programming of modern processors found in personal computers, servers and handheld/embedded devices 18 Trang 19The State Design ... of several states, with different behavior in each state 21 Trang 22State Design Pattern State is one of the Behavioral patterns  It is similar to Strategy  Allows an object to alter its behavior

Ngày tải lên: 19/03/2014, 22:32

... we’ll talk a bit abouthow and why design patterns and MapReduce together make sense, and a bit of a historylesson of how we got here Design Patterns Design patterns have been making developers’ ... Trang 11Welcome to MapReduce Design Patterns! This book will be unique in some ways and familiar in others First and foremost, this book is obviously about design patterns, whichare templates ... ContentsPreface ix 1 Design Patterns and MapReduce 1 Design Patterns 2 MapReduce History 4 MapReduce and Hadoop Refresher 4 Hadoop Example: Word Count 7 Pig and Hive 11 2 Summarization Patterns

Ngày tải lên: 22/03/2014, 17:20