Need Statement:

Using different mechanisms and sound sensors we can control the swing motion of the cradle for the peaceful sleeping of the baby.

3.1 Question and answers

                 Table 1: Questions and answers

Sl. No.	Questions	Answers	Objective/Function/Constraint
1.	What should be the size of the project?	it should be 1ft X 1ft X 1ft in dimensions	Constraint
2.	Do you want to say something about the weight of the cradle?	it should be light weight	Objective
3.	What will be your budget?	it should be cost-effective	Objective
4.	What age group of children is subjected to use?	it should be useful for a child almost 6 months old	Constraint
5.	What is the duration you want us to prepare this machine?	it should be available around 3 months	Constraint
6.	How will the machine be used?	the main feature is to swing automatically	Function
7.	Should the machine be used as manual or automatic?	it should be an automatic machine	Objective, Function
8.	Do you want it to be portable?	yes just enough to move around in the room	Function
9.	Do you want any additional features?	yes	Objective
10.	Do you want it to be attractive?	yes attractive for a small child	Objective
11.	Do you want the machine to have sound sensors?	yes to sense when the baby cries	Function
12.	What type of acknowledgment should the machine give you?	the buzzer sound or some type of alert would be alright	Function
13.	Does the sound be loud?	no it should be just audible	Objective
14.	What should be the maximum weight for it to bear?	it should have the capacity to hold around 2-3kg baby	Constraint
15.	Do you want the machine to have wet sensors?	yes when the baby wets the bed it should notify	Function
16.	Do you want the cradle to have some hanging toys?	yes it would be fun for the baby	Function
17.	In what all places do you want it be used?	just in the bedroom	Objective

3.2 Basic Survey and requirements

          Table 2: Observation from a literature survey

Sl. No.	Observation from surveys	Requirements
1.	Weight of the cradle	It should be easy to carry and portable
2.	Cost	Machine should be built within minimum budget
3.	Main function	Content sleep of the baby
4.	Operation	Alerting the parents about the discontent of the baby and should be fun for the baby
5.	Materials to be used	It should be non-toxic and light weight

3.3 Identifying Client's Objectives

Step 1: Prepare a list of design objectives

        Table 3: Objectives identified

Sl. No.	Objectives
1.	Cradle should be light weight
2.	Cradle should be cost-effective
3.	Cradle should be automatic
4.	Suitable to be used in the bedroom
5.	Any additional features
6.	Attractive and fun for a small child
7.	Notification should be audible

Problem definition version 1.1 :-

Design a light weight automatic cradle machine which is cost-effective. It should be attractive and fun for the baby with audible notifications and to be used in the bedroom.

3.4 Identify constraints

Step 2: Prepare a list of design constraints

  Table 4: Identified Constraints

Sl. No.	Constraints
1.	1ft X 1ft X 1ft in dimensions
2.	Useful for a child of almost 6 months old
3.	Machine should be built within 3 months old
4.	Capacity to hold a 2-3kgs baby

Problem definition version 1.2 :-

Design a light weight automatic cradle machine which is cost-effective. It should be attractive and fun for the baby with audible notifications and to be used in the bedroom. Machine must not exceed the size of 1ft in all dimensions and should have the capacity to hold a 6 months old baby. It should be built within 3 months.

3.5 Establish Functions

Step 3: Prepare a list of design functions

      Table 5: Identified Functions

Sl. No.	Functions
1.	Swing automatically
2.	Automatic machine
3.	Detect when the baby cries
4.	Detect when the baby wets the bed
5.	Notify when the baby wets the bed
6.	Hanging toys for baby's fun
7.	Portable to move around in the room

Problem definition version 1.3 :-

Design a light weight automatic cradle machine which is cost-effective. It should be attractive and fun for the baby with audible notifications and to be used in the bedroom. Machine must not exceed the size of 1ft in all dimensions and should have the capacity to hold a 6 months old baby. It should be built within 3 months. The main function is to swing automatically when the baby cries and should detect when the baby wets the bed. It should notify when the baby cries and wets the bed. It should be portable.