TweetFollow Us on Twitter

May 93 - A CASE tool for OOA, OOD and OOP

ObjectModeler™
A CASE tool for OOA, OOD and OOP

Doug Rosenberg

ObjectModeler is an application which is useful for Object Oriented Analysis, Design, and Programming. There are 3 main areas of functionality within the program:

a GRAPHICS EDITOR which provides drawing palettes for-

  • Coad/Yourdon OOA diagrams
  • Rumbaugh OMT (Object Modeling Technique) diagrams
  • Booch Class diagrams
  • Booch Object diagrams

a DICTIONARY which provides-

  • a convenient place to capture additional detail beyond what is shown on the diagrams
  • a mechanism for sharing a model across a developmentteam on a fileserver
  • global change capability across a network
  • access controls and collision detection
  • integration with other ICONIX PowerTools™ modules

a TEXT EDITOR which provides-

  • linkage between source code and diagram elements
  • language templates on pull-down menus for
    • C++
    • Lisp
    • SQL
    • Pascal
    • PDL (ICONIX PowerPDL™ pseudocode language)

ObjectModeler can help to bring order and discipline to the often ad-hoc and chaotic process of developing O-O software without being overly rigid and stifling programmer creativity. Using ObjectModeler in conjunction with other ICONIX modules which support State Transition Diagrams, Module Architecture Diagrams and other techniques (e.g. PDL) makes it even more useful.

Object Oriented Analysis

The primary reason for not skipping the analysis phase of a software project is to ensure that the system under construction will properly meet the requirements of the customers or end-users. In other words, are we building the right system?

OOA methods tend to model the real world, often using notations that display classes or objects within the same symbol as their attributes (fields) and services or operations (methods). Other common themes across OOA methods are the kind-of and part-of relationships between classes.

These concepts lead to models of the objects, classes, and inheritance relationships in the problem domain which are readily understood by the end-users as well as the developers. These models are used to facilitate communication and lead to a common understanding of a system under development which is shared by all members of the development team as well as the end users.

ObjectModeler supports two methodologies which share these common themes; Coad/Yourdon OOA and Rumbaugh OMT. Each of these methodologies has its own set of strengths. Coad and Yourdon provide an easily understood notation for describing class hierarchies and address large system concerns with a 5-layer model which supports decomposition along Subject boundaries. Rumbaugh provides a rigorous approach based on Entity-Relationship modeling, extensive treatment of how to produce SQL from Class diagrams, and also includes State Machines and Data Flow diagrams as supplementary descriptions of object behavior and functionality; the ICONIX FastTask™ and FreeFlow™ modules support these representations.

Object Oriented Design

The primary reason for not skipping the design phase of a software project is to ensure that the system under construction is properly designed; that is, that the class hierarchy is appropriate, that the code is well modularized, and that the design will effectively meet performance constraints. In other words, are we building the system right?

ObjectModeler supports the Booch Object Oriented Design methodology. Booch is widely regarded as having the most comprehensive notation for OOD; his method consists of two primary kinds of diagrams, Class Diagrams and Object Diagrams. Booch also uses State Transition and Module Architecture diagrams in his OOD methodology; the ICONIX FastTask™ and AdaFlow™ modules support these representations.

Class Diagrams show the relationship between classes in a system, focusing on different kinds of inheritance and instantiation relationships. In Booch's words, they are used to answer the question "What classes exist and how are they related?"

Object Diagrams show objects and relationships between objects, focusing on visibility (how objects see each other) and message synchronization (how objects interact with each other). In Booch's words, they are used to answer the question "What mechanisms are used to regulate how objects collaborate?".

Booch proposes a set of templates for specifying details about classes, objects, messages and other design elements. These templates are available in ObjectModeler's Language Sensitive Editor as templates which can be picked off a menu and dropped into a text file that is linked to symbols on the diagrams.

name: Temp Control Display
documentation: <text>
visibility: <exported/private/imported>
cardinality: <0/1/n>
heirarchy:
    superclasses: Displays
    metaclass: <class_name>
generic parameters:  <list_of_parameters>
interface | implementation
(public/protected/private):
    uses: <list_of_class_names>
    fields: <list_of_field_declarations>
    operations: <list_of_operation_declarations>
finite state machine:  <state_transition_diagram>
concurrency: <sequential/blocking/active>
space complexity: <text>
persistence: <persistent/transitory>

Figure 6 - A Booch Class template. Booch defines an extensive set of templates which specify a variety of detailed information about system design elements.

ObjectModeler also supports the development of pseudocode (PDL) linked to symbols on diagrams. PDL may be used at any time during analysis or design when an algorithmic specification is called for. The ICONIX PowerPDL™ module may be used to collect PDL fragments created with ObjectModeler and format them into a design document, complete with a Table of Contents and several useful Cross References.

IF the steering wheel is rotated by more than 45 degrees THEN
    send a "turn complete" message to the turn indicator
ENDIF

Figure 7 - The ICONIX PowerPDL™ module can collect PDL fragments into complete documents with a Table of Contents and extensive Cross References.

Team Project Considerations ObjectModeler's dictionary provides a convenient place to store additional information about symbols on analysis or design diagrams. Items are automatically added to the dictionary as they are named, and can be accessed from the graphics editor by option-double-clicking on a named symbol. Each different type of symbol has its own set of attributes available on a pull-down menu.

ObjectModeler supports server-based development for project teams. Data is copied from the server into local RAM on program start-up; during editing operations, the server is polled periodically (at user-specified time intervals) and any changes are downloaded, minimizing network traffic while providing excellent performance and real-time updates. Each dictionary entry has a complete set of Access Privileges which control who gets to view, edit, rename, and delete it. Judicious use of these access controls allows a project team to provide an appropriate level of protection for design elements which are common within a subsystem or across subsystems.

The dictionary may be viewed as a scrolling list. The list can be scrolled or users can type the first few characters of an entry's name to access it. The dictionary provides several powerful functions which are useful in real-world project situations, including Global Rename and Delete (which affect all diagrams on the network), and cross referencing options to tell where entries are used and what they contain.

Object Oriented Programming

Once you have determined that you are building the right system and that you are designing the system right using ObjectModeler's OOA and OOD capabilities, it's time to implement, probably in some OOP language (perhaps C++).

ObjectModeler provides templates for a variety of languages (including C++, Lisp, and SQL) on pull-down menus. Code files may be accessed from diagrams by shift-double-clicking on a named symbol. The language templates may be used to eliminate a variety of syntax errors including keyword spelling and punctuation errors, and to provide a consistent code formatting style across an entire development team.

class TAudio_Display {
    public:
       TAudioDisplay(int volume);
       TAudioDisplay(int volume,
                     int bass,
                     int treble);  // overload
       virtual ~TAudioDisplay();
          
    protected:
       virtual void SetVolume();
       virtual void SetTone();
    
    private:
       int fVolume;
       int fBass;    
       int fTreble;
};

class RadioDisplay : TAudio_Display {
    public:
       TRadioDisplay(int volume
                     int frequency
                     int station);
       virtual ~TRadioDisplay();
          
    protected:
       virtual void SetFrequency();
       virtual void SetStation();
    
    private:
       int fFrequency;
       int fStation;
};

Figure 11 - ObjectModeler's Language Sensitive Editor is used to build source code directly linked to CASE model.

Coding may be carried through to completion within ObjectModeler or transitioned at any time to any back-end environment, at the user's option. All ObjectModeler code files are stored as flat ASCII text and may be transported to host platforms or other environments with ease. If Module Architecture Diagrams are used, an identical editor is available in the ICONIX AdaFlow module.

Summary

Requirements analysis is useful because it gives us an opportunity to determine whether we are in fact building the right system. Software design is useful because it gives us an opportunity to determine whether we are building the system right. While it is possible to achieve success without going through formal analysis and design activities, the chances of success are clearly maximized by taking the time to think about these issues. OOA and OOD methodologists have developed analysis and design methods which encapsulate useful experience gained across hundreds of O-O software projects. They have developed notations which represent O-O constructs and they have written books which ask the right questions about software under development.

ObjectModeler packages up three popular O-O methodologies into a tool which addresses team project concerns and multiple lifecycle phases (analysis, design, coding) in a reliable, cost-effective, and easy-to-use manner. ICONIX provides other tools which complement ObjectModeler with techniques like State Transition Diagrams, Module Architecture Diagrams, and PDL, in a synergistic manner. When conscientiously applied, the use of CASE methods and tools leads to successful projects; clean, well-designed programs delivered on-schedule and within budget.

For further information on ObjectModeler, other ICONIX PowerTools™ modules, or training in O-O methods, please contact us at:

ICONIX Software Engineering, Inc.
2800 28th Street, Suite 320
Santa Monica, CA 90405

Phone (310) 458-0092
FAX (310) 396-3454
Applelink: ICONIX
Internet: ICONIX@applelink.apple.com

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

GarageSale 7.0.7 - Create outstanding eB...
GarageSale is a slick, full-featured client application for the eBay online auction system. Create and manage your auctions with ease. With GarageSale, you can create, edit, track, and manage... Read more
SpamSieve 2.9.28 - Robust spam filter fo...
SpamSieve is a robust spam filter for major email clients that uses powerful Bayesian spam filtering. SpamSieve understands what your spam looks like in order to block it all, but also learns what... Read more
Thunderbird 45.7.1 - Email client from M...
As of July 2012, Thunderbird has transitioned to a new governance model, with new features being developed by the broader free software and open source community, and security fixes and improvements... Read more
Opera 43.0.2442.991 - High-performance W...
Opera is a fast and secure browser trusted by millions of users. With the intuitive interface, Speed Dial and visual bookmarks for organizing favorite sites, news feature with fresh, relevant content... Read more
OnyX 3.2.4 - Maintenance and optimizatio...
OnyX is a multifunction utility that you can use to verify the startup disk and the structure of its system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the... Read more
VueScan 9.5.71 - Scanner software with a...
VueScan is a scanning program that works with most high-quality flatbed and film scanners to produce scans that have excellent color fidelity and color balance. VueScan is easy to use, and has... Read more
Slack 2.5.1 - Collaborative communicatio...
Slack is a collaborative communication app that simplifies real-time messaging, archiving, and search for modern working teams. Version 2.5.1: New The way we load teams you don't view often has been... Read more
HandBrake 1.0.3 - Versatile video encode...
HandBrake is a tool for converting video from nearly any format to a selection of modern, widely supported codecs. Features Supported Sources VIDEO_TS folder, DVD image or real DVD (unencrypted... Read more
Vivaldi 1.7.735.46 - An advanced browser...
Vivaldi is a browser for our friends. In 1994, two programmers started working on a web browser. Our idea was to make a really fast browser, capable of running on limited hardware, keeping in mind... Read more
Vivaldi 1.7.735.46 - An advanced browser...
Vivaldi is a browser for our friends. In 1994, two programmers started working on a web browser. Our idea was to make a really fast browser, capable of running on limited hardware, keeping in mind... Read more

Mudd Masher arrives this week
Atooi Games, the minds behind Totes the Goat and Mutant Mudds, have a new game in the works -- Mudd Masher. The game, a hybrid of the independent studio's first two titles, is expected to launch this week on March 2. [Read more] | Read more »
The best sales on the App Store this wee...
The App Store has quite an exciting lineup of discount games this week that range across a variety of genres. It's a great opportunity to catch up on some of the premium games you may have been holding off on -- and some you can even grab for free... | Read more »
The best new games we played this week
Ah, here we are again at the close of another busy week. Don't rest too easy, though. We had a lot of great new releases in mobile games this week, and now you're going to have to spend all weekend playing them. That shouldn't be too much of a... | Read more »
Rollercoaster Tycoon Touch Guide: How to...
| Read more »
Rabbids Crazy Rush Guide: How to unlock...
The Rabbids are back in a new endless running adventure, Rabbids Crazy Rush. It's more ridiculous cartoon craziness as you help the little furballs gather enough fuel (soda) to get to the moon. Sure, it's a silly idea, but everyone has dreams --... | Read more »
Tavern Guardians (Games)
Tavern Guardians 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: Tavern Guardians is a Hack-and-Slash action game played in the style of a match-three. You can experience high pace action... | Read more »
Slay your way to glory in idle RPG Endle...
It’s a golden age for idle games on the mobile market, and those addictive little clickers have a new best friend. South Korean developer Ekkorr released Endless Frontier last year, and players have been idling away the hours in the company of its... | Read more »
Tiny Striker: World Football Guide - How...
| Read more »
Good news everyone! Futurama: Worlds of...
Futurama is finding a new home on mobile in TinyCo and Fox Interactive's new game, Futurama: Worlds of Tomorrow. They're really doing it up, bringing on board Futurama creator Matt Groening along with the original cast and writers. TinyCo wants... | Read more »
MUL.MASH.TAB.BA.GAL.GAL (Games)
MUL.MASH.TAB.BA.GAL.GAL 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: ENDLESS UPGRADES. CONSTANT DANGER. ANCIENT WISDOM. BOUNCY BALLS. Launch Sale, 40% OFF for a very limited time!!! MUL.... | Read more »

Price Scanner via MacPrices.net

27-inch 3.3GHz 5K iMac on sale for $2099, sav...
B&H Photo has the 27″ 3.3GHz 5K Apple iMac on sale for $2099.99 including free shipping plus NY sales tax only. Their price is $200 off MSRP. Amazon also has the 27″ 3.3GHz 5K iMac on sale for $... Read more
21-inch iMacs on sale for up to $111 off MSRP
B&H Photo has select 21″ Apple iMacs on sale for up to $110 off MSRP, each including free shipping plus NY sales tax only: - 21″ 2.8GHz iMac: $1189 $110 off MSRP - 21″ 1.6GHz iMac: $999 $100 off... Read more
12-inch 1.2GHz Retina MacBooks on sale for $2...
Newegg has the 12″ 1.2GHz Space Gray Retina MacBook (sku MLH82LL/A) on sale for $1349.99 including free shipping. Their price is $250 off MSRP, and it’s the lowest price available for this model.... Read more
13-inch MacBook Airs on sale for $100 off MSR...
B&H Photo has 13″ MacBook Airs on sale for $100 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 1.6GHz/128GB MacBook Air (MMGF2LL/A): $899 $100 off MSRP - 13″ 1.6GHz/... Read more
9-inch 32GB Silver iPad Pro on sale for $549,...
B&H Photo has the 9.7″ 32GB Silver Apple iPad Pro on sale for $549 for a limited time. Shipping is free, and B&H charges NY sales tax only. Their price is $50 off standard MSRP for this model... Read more
13-inch 2.0GHz Apple MacBook Pros on sale for...
B&H has the non-Touch Bar 13″ 2.0GHz MacBook Pros in stock today and on sale for $100 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 2.0GHz MacBook Pro Space Gray (... Read more
15-inch Touch Bar MacBook Pros on sale for up...
B&H Photo has the new 2016 15″ Apple Touch Bar MacBook Pros in stock today and on sale for up to $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 15″ 2.7GHz Touch Bar... Read more
12-inch Retina MacBooks on sale for $1150, $1...
B&H has 12″ 1.1GHz Retina MacBooks on sale for $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 12″ 1.1GHz Space Gray Retina MacBook: $1149 $150 off MSRP - 12″ 1.1GHz... Read more
Apple restocks refurbished 11-inch MacBook Ai...
Apple has Certified Refurbished 11″ MacBook Airs (the latest models recently discontinued by Apple), available for up to $170 off original MSRP. An Apple one-year warranty is included with each... Read more
Apple Park Opens to Employees in April With T...
Apple has announced that Apple Park, the company’s new 175-acre campus, will be ready for employees to begin occupying in April. The process of moving more than 12,000 people will take over six... Read more

Jobs Board

*Apple* Solutions Consultant - Apple (United...
# Apple Solutions Consultant Job Number: 55676865 Los Angeles, California, United States Posted: Feb. 22, 2017 Weekly Hours: 40.00 **Job Summary** As an Apple Read more
Programmer/Editor *Apple* Music Dance - App...
# Programmer/Editor Apple Music Dance Job Number: 55565967 Culver City, California, United States Posted: Feb. 23, 2017 Weekly Hours: **Job Summary** Apple Music Read more
Digital Marketing Specialist - *Apple* iClo...
# Digital Marketing Specialist - Apple iCloud Job Number: 54729233 Culver City, California, United States Posted: Feb. 22, 2017 Weekly Hours: 40.00 **Job Summary** Read more
Marketing Specialist, iTunes & *Apple*...
# Marketing Specialist, iTunes & Apple Music Job Number: 55704205 Culver City, California, United States Posted: Feb. 23, 2017 Weekly Hours: 40.00 **Job Summary** Read more
*Apple* Wireless Lead - T-ROC - The Retail O...
…of knowledge in wireless sales and activations to the Beautiful and NEW APPLE Experiencestore within MACYS. THIS role, APPLE Wireless Lead, isbrandnewas MACYS Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.