tpt: Function to evaluate EST, EFT, LST and LFT times of activity...

In mfpp: 'Matrix-Based Flexible Project Planning'

Function to evaluate EST, EFT, LST and LFT times of activity of a project.

Description

Calculate EST, EFT, LST and LFT times of activity of a project.

Usage

tpt(DSM,TD,SST=NULL)

Arguments

DSM	N by N Upper triangular binary matrix of logic domain (a numeric matrix).
TD	N by 1 vector of time duration (a numeric vector).
SST	N by 1 vector of scheduled start time (a numeric vector).

Value

TPT	Total Project Time (a scalar).
EST	Early Start Time (a vector).
EFT	Early Finish Time (a vector).
LST	Latest Start Time (a vector).
LFT	Latest Finish Time (a vector).
SST	Scheduled Start Time (a vector).
SFT	Scheduled Finish Time (a vector).

Author(s)

Zsolt T. Kosztyan*, Aamir Saghir

e-mail: [e-mail]

References

Kosztyán, Z. T. (2022). MFPP: Matrix-based flexible project planning. SoftwareX, 17, 100973.

See Also

tpc, tpq, tpr, maxscore_PEM.

Examples

# Calculatation of EST, EFT, LST and LFT times of activity of a project

# Define a 3 by 3 upper triangular binary matrix (DSM) of logic domain (LD) of a project.

# Specify sequence of three tasks
# Diagonal values indicates the priority of tasks
# 1=the task is mandatory
LD<-rbind(c(1,1,0), c(0,1,1), c(0,0,1))

# Define a 3 by 1 vector of time durations of a project, where the durations are 3,4,5 respectively.
TD<-c(3,4,5)

# Calculate project duration (total project time, TPT)
TPT<-tpt(LD,TD)

summary(TPT)

# Specify initial scheduled start time, where the delay is 1 for the .
SST <- c(1,0,0)

# Including scheduled starts and finishes.

TPT<-tpt(LD,TD,SST)

# Print schedule table
summary(TPT)

# Plot the scheduled Gantt chart
plot(TPT,sched="S")

mfpp documentation built on June 22, 2024, 9:35 a.m.