The Subject of the Distinction
The words “skill” and “ability” are often used interchangeably. For example, task decomposition is sometimes called a skill and sometimes the ability to break something complex into simpler parts. However, these words can be used to distinguish two different foundations of activity.
A skill characterizes a learned, relatively stable way of acting.
The subject’s ability characterizes the possibility of performing an action, including one for which no method has yet been given and a method must be found or created.
Their difference is especially apparent where action requires the identification of meaningful parts and the formation of new categories. It is precisely here that the boundary becomes visible between applying an already defined method and an act of the subject that determines the very basis of the action.
Skill: A Learned Form of Action
A skill presupposes that the subject has mastered a certain way of acting and is capable of reproducing it.
A skill does not have to be expressed as a step-by-step instruction: a person may act confidently without being able to describe the entire sequence of their own operations. But a skill already contains stability of method. Thanks to that stability, an action can be repeated, improved, transmitted through teaching, and sometimes formalized and algorithmized.
Examples:
- recognizing known logical fallacies by their learned distinguishing features;
- applying a familiar methodology for project decomposition;
- performing practiced programming operations;
- checking a result against previously formulated criteria.
A skill is connected with the form in which an action is carried out, not with a guarantee that the action is meaningful. A practiced method can be applied to an unsuitable task. Correctly reproducing the steps does not by itself establish that the essential distinctions have been selected.
Mastery of a method and justification for applying it are different questions.
Ability: The Subject’s Action Without a Predetermined Method
Ability, in the sense considered here, refers to the subject as the source of action, not merely as the bearer of learned methods.
The subject may encounter a situation in which ready-made categories, previously identified parts, and a known solution procedure are absent. Nevertheless, the subject may discover a difference, determine its significance, draw a new boundary, and create a category to hold what has been discovered.
Ability manifests itself not only in applying a form but also in the emergence of a new form of action or a new basis for distinction.
For example, a person notices a substitution in an argument without knowing the name of the corresponding logical fallacy. The person has not yet classified what was discovered but has already distinguished that the subject matter of the discussion has changed. Subsequently, this distinction can be described, named, turned into a method of recognition, and mastered as a skill.
What matters here is an order not in time but in meaning: the availability of a ready-made category is not a necessary condition for the act of distinction itself.
The word “ability” can also be used in another sense, for example when speaking of a knife’s ability to cut or a system’s ability to perform an operation. This document considers specifically the ability of the subject, including the possibility of independently creating the meaningful foundations of action. It must not be silently replaced with the physical or technical capability to perform an operation.
Skill and Algorithmization
An algorithm specifies a particular order of operations, transition rules, and conditions of their application. Skill is not identical to an algorithm, but a learned way of acting allows partial or complete formalization.
Therefore, one cannot simply equate skill and algorithm. It is more accurate to distinguish:
- skill: the subject’s mastery of a way of acting;
- algorithm: a formalized sequence or system of rules for performing operations;
- the subject’s ability: the possibility of acting, including determining new foundations and methods of action.
Algorithmization requires establishing precisely what the operation is performed on, which differences are taken into account, and by which criterion the result is considered achieved. Even if an algorithm can generate new combinations or propose new categories, a separate question remains: on what basis is the proposed category recognized as meaningful and essential for the task being solved?
Formally generating a certain structure and determining its meaning are not the same action.
The possibility of algorithmizing a particular method does not imply that the subject’s ability is exhausted by that method.
Example: Task Decomposition
The phrase “the ability to break a large task into small subtasks” appears to describe a single skill. But different operations are concealed within this action.
Dividing According to Ready-Made Categories
Suppose an application needs to be developed. Categories such as “interface,” “server,” “database,” and “infrastructure” already exist. The task can be distributed across these areas.
In this case, the subject applies an existing system of distinctions. The subject may do so with greater or lesser skill. Here it is indeed possible to speak of a skill of decomposition according to a learned scheme.
A Learned Procedure Without a Ready-Made Answer
A person may know a method: identify parts, establish dependencies, assign responsibility, estimate scope, and check completeness.
But this procedure does not yet answer the question of what exactly should count as a part.
The rule “identify meaningful parts” does not contain a list of those parts and does not automatically establish the basis on which they should be identified.
Skill in applying a method does not eliminate the need for independent distinction.
Creating the Basis for Decomposition
Now suppose that the subject encounters a new task for which no ready-made division is suitable.
The subject must determine:
- What differences are present in the task at all.
- Which of them are essential in relation to the meaning the subject invests in the task.
- On what basis the boundaries should be drawn.
- Which categories are necessary to hold those boundaries.
- Which of the identified parts actually make it possible to accomplish what was intended.
At the same time, the basis for division may not yet exist as a ready-made category. The subject creates it in the process of investigating the task.
Here, decomposition appears as a manifestation of the ability to distinguish and create categories, rather than merely as the reproduction of a learned method.
One Task, Different Bases
Organizing a conference can be divided:
- by functions: program, participants, venue, equipment;
- by stages: preparation, execution, completion;
- by uncertainties: financing, speakers’ availability, technical conditions;
- by meaningful obligations to participants: what has been promised, what must be provided, what remains open.
All these variants concern the same task but establish different boundaries. Reducing the size of the parts does not automatically make decomposition meaningful.
Decomposition does not simply discover small tasks already lying inside the task. It can create the basis relative to which the task becomes divided into particular parts in the first place.
The Distinction Between Creation and Reproduction
Once a new distinction has been made, it can be recorded. Once the basis of division has been described, it can be applied again. Once a method has been steadily mastered, a skill emerges, which may subsequently become an object of algorithmization.
But the possibility of reproducing a result does not imply that the reproducing mechanism performs the same act through which its meaningful foundation was created.
It is necessary to distinguish:
- discovering a difference from recognizing a known difference;
- creating a category from applying a ready-made category;
- determining the significance of a boundary from performing an operation according to an already specified boundary;
- finding a way of acting from reproducing a learned way of acting.
These actions may be present in the same activity and even in one continuous process. Therefore, the presence of a skill does not exclude the manifestation of ability, and ability does not imply the absence of skill.
One subject can simultaneously use a learned method and modify its foundations when encountering something the method fails to distinguish.
Ontological Consequence
If every ability is declared a skill and every skill is reduced to an algorithm, a substitution occurs: the subject’s act of creating the basis of distinction is replaced by the reproduction of an already defined form.
Everything new must then be described in advance as the application or combination of old rules. Such a description does not explain where the very basis came from relative to which the new boundary proved significant.
There is no need here to deny the value of skills or algorithms. What is required is not to project the properties of a reproducible operation onto the entire space of the subject’s possibilities.
Final Distinction
Skill is a learned and relatively stable way of performing an action.
The subject’s ability is the possibility of acting, including discovering differences, creating categories, and determining ways of acting that have not been specified in advance.
Algorithmization is the formalization of a way of performing operations; it is identical neither to skill as mastery nor to the subject’s ability as a source of new meaningful foundations.
A brief formula:
Skill allows a way of acting to be reproduced. The subject’s ability allows action even where the very method still has to be distinguished or created.
And the main criterion for the decomposition example:
Dividing a task according to given bases can be a skill. Creating the bases according to which the task becomes meaningfully divisible is a manifestation of the subject’s ability.
