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Guide to software quality assurance (ESA)
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Guide to applying the ESA software engineering standards to small software projects (ESA)
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An Overview of ESA Software Product Assurance Services (NASA/ESA)
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Our approach to quality in Volkswagen Software Dev Center Lisbon Google Style Guides
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Ensuring Product Quality at Google (2011) NASA Software Assurance NIST Software Quality Group
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OMG/CISQ Automated Function Points (ISO/IEC 19515) OMG Automated Technical Debt Standard
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Automated Quality Assurance (articled in IREB by Harry Sneed)
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Structured Testing: A Testing Methodology Using the Cyclomatic Complexity Metric (1996)
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Analyzing Application Quality by Using Code Analysis Tools (Microsoft, Documentation, Visual
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Studio, 2016)
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Systems thinking Quality Source code
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Perspective-taking is the act of perceiving a situation or understanding a concept from an
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alternative point of view, such as that of another individual. There is a vast amount of scientific
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literature that has looked at perspective-taking and suggests that it is crucial to human
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development, and that it may lead to a variety of beneficial outcomes. Perspective-taking is
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related to other theories and concepts including theory of mind and empathy. Both theory and
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research have suggested ages when children are able to begin to perspective-take and how that
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ability develops over time. Research has also suggested that certain people that have attention
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deficit hyperactivity disorder with comorbid conduct problems (such as Oppositional Defiant
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Disorder) or autism may have reduced ability to engage in perspective-taking. Additionally, studies
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have been conducted to assess the brain regions involved in perspective-taking. These studies
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suggest that several regions may be involved, including the prefrontal cortex and the precuneus.
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Additionally, studies suggest that perspective-taking may be possible in some non-human animals.
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Definition
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Perspective-taking is the step by which an individual views a situation from another's
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point-of-view. Within the scientific literature, perspective-taking has been defined along two
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dimensions: perceptual and conceptual. Perceptual perspective-taking is defined as the ability to
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understand how another person experiences things through their senses (i.e. visually or
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auditorily). Most of this literature has focused on visual perspective-taking: the ability to
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understand the way another person sees things in physical space. Conceptual perspective-taking is
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defined as the ability to comprehend and take on the viewpoint of another person's psychological
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experience (i.e. thoughts, feelings and attitudes). For instance, one can visualize the viewpoint
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of a taller individual (perceptual/visual) or reflect upon another's point of view on a particular
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concept (conceptual).
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Related terms
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Theory of mind
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Theory of mind is the awareness that people have individual psychological states that differ from
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one another. Within perspective-taking literature, the term perspective-taking and theory of mind
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are sometimes used interchangeably and some studies use theory of mind tasks in order to test if
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someone is engaging in perspective-taking. Some research, however, has highlighted that the two
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concepts are related but different, with theory of mind being the recognition that another person
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has different thoughts and feelings and perspective-taking being the ability to take on that other
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person's point of view.
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Empathy
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Empathy has been defined as the ability for someone to share the same emotions another person is
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having. Empathy and perspective-taking have been studied together in a variety of ways. Within the
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scientific literature, there are not always clear lines of distinction between empathy and
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perspective-taking, and the two concepts are often studied in conjunction with one another and
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viewed as related and similar concepts. Some research has distinguished the two concepts and
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pointed out their differences, while other literature has theorized that perspective-taking is one
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component of empathy.
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In development Visual
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Previous studies have assessed the age at which humans are capable of visual perspective-taking.
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Various studies within the literature have drawn different conclusions.
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In 1956, Jean Piaget and Bärbel Inhelder conducted a study to assess the visual perspective-taking
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abilities of young children which has come to be known as the three mountain problem. This study
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found that by the ages of 9-10, children were able to successfully complete the three mountain
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problem and seemed able to understand that when someone is standing in a different location (i.e.
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on a different mountain top) they would have a different view. However, children ages 8 and under
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struggled with this task.
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Since this classic study, a number of studies have suggested that visual perspective-taking may be
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possible earlier than the age of 9. For example, a study that used a different method to assess
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visual perspective-taking suggested that children may be able to successfully visually
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perspective-take by the age of 4.5 years old. In this study, 4.5-year-old children were able to
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understand that someone sitting closer to a picture would have a better view of that picture.
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However, these researchers found that children who were 3 and 3.5 years old struggled with this
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task which led them to conclude that the age range of 3 to 4.5 years old could be crucial in
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perspective-taking development.
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Additionally, developmental psychologist John H. Flavell suggested that there are two levels of
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visual perspective-taking that emerge as children develop. Level 1 perspective-taking is defined as
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the ability to understand that someone else may see things differently and what another person can
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see in physical space. For example, one could understand that while an object may be obstructing
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their own view, from where another person is standing they can see a cat in the room. Level 2
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perspective-taking, however, is defined as the understanding that another person can see things
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differently in physical space and how those objects are organized from that other person's point of
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view. For example, a person can understand that from another person's point of view they can see a
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dog to the right but from their own point of view the dog is to the left.
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Studies have since been done to examine when children are able to demonstrate level 1 and level 2
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perspective-taking. These studies have shown that children at 24 months old and 14 months old may
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be able to engage in level 1 perspective-taking. Research also suggests that children can engage in
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level 2 perspective-taking as early as 2.5 years old.
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Studies have also suggested that visual perspective-taking ability improves from childhood to
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adulthood. For example, in comparing 6-year-olds, 8-year-olds, 10-year-olds and adults (averaging
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at 19 years of age) researchers found that as people's age increased, visual perspective-taking
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tasks could be done with more accuracy and speed.
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Conceptual
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In Piaget's theory of cognitive development, he suggests that perspective-taking begins in the
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concrete operational stage (third stage) which ranges from ages 7–12. It is within this stage that
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the idea of decentration is introduced as a cognitive ability. Decentration was defined as the
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ability to take into account the way others perceive various aspects of a given situation.
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Another developmental perspective-taking theory was created by Robert L. Selman and entitled social
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perspective-taking theory (also known as Role-taking theory). This theory suggests that there are
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five developmental stages involved in perspective-taking ranging from ages 3–6 (characterized by
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egocentrism or an inability to think of things from another's point of view) to teenagers and
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adults (where people can understand another person's point of view and this understanding is
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informed by recognizing another person's environment and culture). The theory suggests that as
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humans age from childhood to adulthood their ability to perspective-take improves. Studies by
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Selman and colleagues suggest that children are able to perspective-take in different ways at
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different ages.
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Other studies assess that children can begin to take on the viewpoint of another person considering