Essence Of Patterns

Mr. Jigar Thaleshwar and Ms. Ruta Thakkar ( Pithwa ) the Event Anchors, welcomes the participants on behalf of Rajesh Patkar Institute. Special thanks to Mumbai Book Sellers and Publishers Association for Organizing "Mumbai National Book Fair" and inviting us for special event "Essence Of Patterns"

Mr. Jigar Thaleshwar is a management graduate and apart from a very successful profession career he is also actively interested in performing arts especially Dance. He is founder of "Sony School Of Garba Dance". Mr. Jigar Thaleshwar is currently General Manager -India ( Sales & business development ) Deccan Charters Limited.

Ms. Ruta Thakkar ( Pithwa ) is an Engineering graduate and has an illustrious career in IT industry. She is currently Director Automation & Tooling , Diebold Nixdorf.

Mr. Fernandis and Mr. Varad from Mumbai Book Sellers and Publishers Association felicitate Mr. Rajesh Patkar from Rajesh Patkar Institute Of Software Engineering.

Missed Deadline, lack of quality manpower and low quality software development are some of the several problems Softwere Industry is facing.We are in search for some fundamental solution that would solve some of these problems. Pattern movement offers glimmer of hope.

In this clip Ruta emphasises the current state of affairs in IT Industry and sets the premises for the seminar which discusses patterns. Lets explore the pattern space and see what it has to offer us.

Mr. Rajesh Patkar introduces patterns and the agenda of the Seminar.

Developers take design decisions. With each decision we not only buy its features but also the limitations. This clip highlights this fact. and suggests that Design Pattern can help us take design decisions where we can maximise the benefits and minimise the constraints.

The standard definition of patterns states that "Pattern is a solution to a problem in context". There are three keywords here.

1. Context
2. Problem
3. Solution

This clip gives you an overview of these terms

Every pattern opts for certain design decisions. This inevitably results in some limitations. Not only must one know the benefit of a pattern but one must also be aware of the Consequence of using a pattern in the overall scheme of things.

Adapter is a very commonly used pattern. It is widely used to solve the problem of Interface mismatch. This clip gives and overview of Adapter Pattern.

Proxy and Decorator are both very widely used patterns. This clip gives an overview of Proxy pattern and gives a passing by reference to Decorator pattern in terms of proxy. Both Proxy and Decorator depend have constraint of Transparency form the customer's perspective.

Composite pattern uses a combination of IS-A and HAS-A relationship. It provides both structural and functional recursion. The accompanying video clip provides the overview.

Pattern can be considered as a building block . Patterns offer higher level of abstraction. To become pattern oriented on has to start thinking in terms of patterns. If pattern is considered as a basic building block then one can start assembling patterns to create larger structures.

See the clip to get the feel of it.......

To know more about Pattern as a Building Block read the following article.

Pattern Life Cycle

Knowing patterns is just the beginning. True ownership comes when we apply patterns and create our solutions.

Patterns are not just found in Software. Infact it is in the field of Architecture that Mr. Cristopher Alexander explored patterns. Mr. Kent Beck brought it to software field.

However , patterns are everywhere. They can be found in Indian classical music in forms of RAGAS for hundred of years.

Three levels of granularity for patterns.

1. Idioms ( Small mostly language specific )
2. Design Patterns ( Middle level )
3. Architectural Patterns ( Patterns which define and characterize the whole system )

Four Pattern related activities

1. Applying Patterns
2. Mining Patterns
3. Documenting Patterns
4. Creating Patterns.

A wise man ( Kent Beck ) with a camel ( Pattern ) has changed the way we do design. He has done it without changing anything and yet changing everything. Pattern can act as catalyst.

Ruta informs the participants about the follow through activities after the seminar.

We thanks all the Organizations, Institutions and Individuals who made this event a success. This photo album will help us cherish those moments.

This event evangelized Patterns. Pattern Oriented thought process must be a part of every serious designer. We hope that this event will encourage you to get involved in the four activities related to patterns.

1. Applying Patterns
2. Mining Patterns
3. Documenting Patterns
4. Creating Patterns

A Pattern a day keeps Entropy away.