Attainment POs and PSOs
N.J. Rao and K. Rajanikanth
COs-POs and PSOs
• POs and PSOs are attained through program
specific Core Courses.
• Each Course addresses a sub-set of POs and PSOs
to varying levels (strengths) (1, 2 or 3).
Sometimes we determine the POs/PSOs the
courses address.
• Sometimes we may apriori determine the POs/
PSOs a Course
should address and the COs have to be written to
meet the identified POs/PSOs.
2
Strength of CO-PO/PSO Mapping
• Attainment of a PO/PSO depends both on the
attainment levels of associated COs and the
strength to which it is mapped
• It is necessary to determine the level (mapping
strength) at which a particular PO/PSO is
addressed by the course.
• Strength of mapping is defined at three levels: Low
(1), Medium (2) and Strong (3)
• Several methods can be worked to determine the
strength of a PO/PSO, but implementing them
across a few hundred courses can become a burden
3
Strength of CO-PO/PSO
Mapping Sample
• A simple method is to relate the level of PO with the
number of hours devoted to the COs which address the
given PO.
– If >40% of classroom sessions addressing a
particular PO, it is considered that PO is addressed at
Level 3
– If 25 to 40% of classroom sessions addressing a
particular PO, it is considered that PO is addressed at
Level 2
– If 5 to 25% of classroom sessions addressing a
particular PO, it is considered that PO is addressed at
Level 1
– If < 5% of classroom sessions addressing a particular
PO, it is considered that PO is considered notaddressed
4
Sample CO-PO/PSO Mappings
• Course: Analog Circuits and Systems
Credits: 3:0:1
• Course Designers: K. Radhakrishna Rao and N.J. Rao
Course Outcome
Understand the characteristics of
CO1
POs
CL
Class
Sessions
Lab
Sessions
(Hrs)
PO1,
linear one-port and two-port signal
PO10,
processing networks
PSO1
U
3
U
9
Model one-port devices including R,
L, C and diodes, two-port networks,
CO2
PO2,
and active devices including
PO10,
amplifiers, Op Amps, comparators,
PSO1
4
multipliers, BJTs and FETs
5
Sample CO-PO/PSO Mappings
(contd.,)
Course Outcome
Understand how negative and
CO3
positive feedback influence the
behaviour of analog circuits
Design VCVS, CCVS, VCCS,
CO4
CCCS, and DC and SMPS
voltage regulators
POs
PO1,
PSO1
Lab
Class
Sessions
Sessions
(Hrs)
CL
U
4
4
Ap
10
4
PO3,
PO4,
PO5,
PSO1
6
Sample CO-PO/PSO
Mappings(contd.,)
Course Outcome
CO5 Design analog filters
POs
PO3, PO4,
PO5, PSO1
CL
Class
Sessio
ns
Lab
Sessions
(Hrs)
Ap
8
8
Ap
6
8
40
28
Design waveform
CO6
generators, phase
PO3, PO4,
followers and frequency
PO5, PSO1
followers
Total Hours of instruction
7
Course – PO/PSO Mapping
Strength
11 of 68 (16%) sessions are devoted to PO1
Mapping strength is 1
13 of 68 (19%) sessions are devoted to PO2
Mapping strength is 1
47 of 68 (69%) sessions are devoted to PO3
Mapping strength is 3
44 of 68 (64%) sessions are devoted to PO4
Mapping strength is 3
44 of 68 (64%) sessions are devoted to PO5
Mapping strength is 3
16 of 68 (23%) sessions are devoted to P10
Mapping strength is 1
68 of 68 (100%) Sessions are devoted to PSO1
Mapping strength is 3
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Course-POs/PSO Mapping
• POs and PSOs are addressed through core courses,
projects etc.
• A course/project etc. meets a subset of POs and PSOs
to different strengths (1, 2 or 3)
Sample Course addresses a subset of POs and PSOs to
varying strengths
Course PO PO PO PO PO PO PO PO PO PO
C302
PO
PO PSO PSO
1
2
3
4
5
6
7
8
9
10
11
12
1
2
1
1
3
3
3
0
0
0
0
1
0
0
3
0
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CO Attainment and POs/PSOs
• Not every COi of the course will address every
PO or PSO addressed by the course
CO
POs
CO Attainment
CO1
PO1, PO10, PSO1
62.3
CO2
PO2, PO10, PSO1
67.8
CO3
PO1, PSO1
66.9
CO4
PO3,PO4, PO5, PSO1
67.1
CO5
PO3,PO4, PO5, PSO1
61.4
CO6
PO3, PO4, PO5, PSO1
66.2
%ge
10
PO and PSO Attainment
• PO and PSO attainments are normalized to 1, that
is, if a PO is to be addressed at the level of 3 and
attainments of CO associated with that PO is 100%,
then attainment of that PO is 1
Attainment of PO1 in Cxxx =(1/3)x Ave
(0.623+0.669) = 0.215
Attainment of PO2 in Cxxx =(1/3)x Ave (0.678) =
0.226
Attainment of PO3 in Cxxx =(3/3)x Ave
(0.671+0.614+0.662)=0.648
Attainment of PO4 in Cxxx =(3/3) x Ave
(0.671+0.614+0.662) = 0.648
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PO and PSO Attainment (contd.,)
Attainment of PO5in Cxxx =(3/3) x Ave
(0.671+0.614+0.662) = 0.648
Attainment of PO10 in Cxxx =(1/3) x Ave
(0.623+0.678) = 0.217
Attainment of PSO1 in Cxxx =(3/3) x Ave
(0.623+0.678+0.669+ 0.671+0.614+0.662) = 0.653
• These computations are approximate but indicative
PO/PSO attainment
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Attainment of POs and PSOs
Course PO1
C302
Attain
1
PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 PSO1 PSO2
1
3
3
3
0.215 0.226 0.648 0.648 0.648
0
0
0
0
1
0
0
3
0
0
0
0
0
0.271
0
0
0.653
0
ment
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