47. According to the given information create a Gantt chart.

Activity	Immediate predecessor	Duration
A	-	1
В	A	2
С	B	4
D	C	5

A Gantt chart is a type of bar chart, devised by Henry Gantt in the 1910s, that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements comprise the work breakdown structure of the project. Modern Gantt charts also show the dependency(i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule status using percent-complete shadings and a vertical "TODAY" line as shown here.

1 1 2 3 4 7 8 12

А (1)

D (5)

С (4)

В (2)

1 1 2 3 4 7 8 12

	1	2	3	4	5	6	7	8	9	10	11	12
A	/////
B		/////	/////
C				/////	/////	/////	/////
D								/////	/////	/////	/////	/////

Critical path: A, B, C, D.

48. According to the given information create a Gantt chart.

Activity	Immediate predecessor	Duration
A	-	5
В	A	2
С	A	4
D	B, C	5

A Gantt chart is a type of bar chart, devised by Henry Gantt in the 1910s, that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements comprise the work breakdown structure of the project. Modern Gantt charts also show the dependency(i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule status using percent-complete shadings and a vertical "TODAY" line as shown here.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14
A	///	///	///	///	///
B						///	///
C						///	///	///	///
D										///	///	///	///	///

Critical path: A, C, D.