Data Filtering Interface

The sidebar text 'Нажмите на столбец для выбора значения' is shown in a dim gray color against a dark background, creating very low contrast that is likely below WCAG AA minimum contrast requirements.

This reduces legibility and makes it difficult for users to read instructions, especially for those with low vision or in suboptimal viewing conditions.

Use a lighter text color or increase the background contrast behind the text to achieve at least a 4.5:1 contrast ratio for normal text.

Users may not understand the functions of these icons quickly, leading to frustration or misuse.

Add visible labels beneath icons or ensure easily accessible tooltips appear on hover to clarify each icon’s function.

The placeholder text 'География' appears in a gray color on a slightly darker background, resulting in low contrast that likely fails WCAG AA standards for normal text.

Users with visual impairments or in poor lighting conditions may find this text difficult to read, reducing usability and accessibility of the form.

Increase the contrast by using a lighter text color or a darker background color for the placeholder text to meet at least a 4.5:1 contrast ratio.

The interface has a complex filter and category layout but lacks a clear, persistent indication of the user's current location or role within the app. The visible elements such as toggles, filters, and tabs do not provide obvious landmarks or breadcrumbs to help users understand where they are or what their current context is.

Without clear orientation, users may feel lost navigating the interface, leading to confusion and inefficient use of the app.

Add clear page titles, breadcrumb navigation, or highlighted active states that explicitly communicate the current section or context.

Users may be uncertain about what will happen after clicking the button, reducing conversion rate or causing frustration.

Use a more descriptive and action-oriented label that clearly states the outcome of the action, such as 'Run Analysis' or 'Start Report'.

Small tap targets can cause user frustration and increase error rates due to the difficulty in accurately tapping the intended control especially on touch devices.

There is no explicit call-to-action such as 'Next', 'Search', or 'Analyze' after configuring filters, leaving the user with no clear way to proceed.

Users may get stuck without a clear interaction to advance the flow, causing frustration and flow abandonment.

Add a prominent button such as 'Analyze' or 'Continue' near the bottom or top controls that the user can press to move forward.

The toggle labeled 'Catman' lacks a descriptive label or tooltip explaining its purpose or effect when enabled or disabled.

Users may be confused about what the toggle does, reducing their ability to effectively use the UI feature.

Add a clear label or tooltip explaining the toggle's purpose and the impact of activating it.

The orange filter tags 'Категория' and 'Сеть' in the top filter area are not vertically aligned with the dropdown selection box above them, causing a visual inconsistency in spacing.

Misalignment creates a fragmented and less professional appearance, making the UI harder to scan and reducing user confidence in the interface.

Inconsistent button styles increase cognitive load and reduce perceived UI quality, confusing users about interactivity and hierarchy.

Standardize all toggle and filter control buttons’ border thickness, corner radius, and fill style throughout the UI.

Users may find it hard to tap these small controls accurately, increasing frustration especially on touch devices.

Increase the size of these buttons to meet touch target size guidelines.

The interface requires users to individually select multiple filters such as categories ('Категория', 'Сеть') and further specify values like 'Молоко', 'Пиво', 'Шоколадная плитка' in separate micro-steps.

Users must perform multiple small selections and parameter adjustments, increasing cognitive load and time to complete filtering tasks.

Consider grouping filter selections into fewer, more intuitive steps or enabling batch selection to reduce repetitive micro-steps.

The filter sections on the top and bottom appear visually similar and blend into the dark background, lacking distinct visual hierarchy or separation. The use of similar colors and container styles makes it difficult to immediately differentiate between active category selections and available filter options.

Users may find it hard to quickly distinguish which filters are applied versus which are available for selection, potentially leading to confusion and slower task completion.

Introduce clearer visual distinctions between the active filter selections and available filters cycles using contrasting background colors, borders, or spacing. Improve labeling clarity and consistent grouping to emphasize filter states.

The dropdown labeled 'Full Year' does not specify what year it refers to, or if it is selectable for different periods.

Users may be confused about the date range or data scope this dropdown controls, impacting their understanding of the displayed information.

Clarify the dropdown label by indicating if it refers to the current year, a customizable range, or provide a date prefix like 'Select Year:'

Center-align the '+' and 'x' buttons vertically with the filter input area for consistent spacing.

Dense clickable targets in a small area can lead to accidental clicks, slower task completion, and increased user frustration.

Group related filters with clear headings, add spacing between buttons, or use collapsible sections to reduce visible options simultaneously.

The small '+' and 'x' buttons next to the filter selection are not clearly labeled with tooltips or text, making it unclear if '+' adds a filter or another action, and 'x' clears which part.

Users may hesitate or misuse these buttons due to uncertainty, reducing usability and efficiency.

Add clear labels or tooltips describing their function to improve clarity and confidence.

Tightly spaced click targets increase user error rates and reduce usability, especially on smaller screens or with larger fingers.

Add more horizontal spacing between each tag's remove button or increase padding around each tag to create distinct tap targets.

Users face several competing choices upfront which can slow decision-making and increase confusion.

Prioritize or progressively disclose filter options to reduce initial decision conflict.

The screen shows multiple filter options and selected tags, but there is no visible button or clear control to apply the current filter selections or proceed to the next step.

Users may be unsure how to move forward after selecting filters, leading to confusion or abandonment of the task.

Add a clearly visible 'Apply' or 'Submit' button near the filter controls, or provide visual feedback that the filtering is happening automatically.

The filters are displayed in a wide horizontal layout with multiple long rows and small interactive elements, requiring significant horizontal scanning and making it harder to identify and toggle options efficiently.

Users may waste time and increase cognitive load trying to locate or adjust filters because related items are spread far apart or grouped poorly, reducing efficiency.

Consider switching to a more compact vertical or grouped filter design with collapsible sections or dropdowns, allowing faster scanning and selection.

The large black area in the middle of the screen appears empty or unpopulated but does not provide any textual or visual guidance on what the user should do next or why the area is empty.

Users may not understand whether this area is waiting for input, loading data, or suffering an error, leading to confusion.

Include placeholder text or a message in the empty area that instructs users what to do, such as 'Select filters to see data here' or 'No data to display'.

Several buttons at the bottom like 'Анализ', 'Конструктор', 'Debug: OFF', and 'Сброс' have labels but ambiguous or no context about their exact function or effect.

Users unfamiliar with these terms may not clearly understand their functions, affecting flow and ease of use.

Add tooltips or brief descriptive labels for these controls to provide context and instructions.

Clusters of small tags and buttons such as filter chips and operator boxes are tightly packed and visually dense, increasing clutter.

Visual clutter distracts users and can reduce focus on primary tasks.

Add more spacing or visually simplify clusters by grouping or hiding inactive options.